Description

When i drag and drop an icon in the desktop (move an icon in the desktop) and then rapidly i click the empty background, the program closes itself.

Steps to reproduce

1. Drag an icon from de desktop
2. Drop the icon on a different point of the desktop
3. Rapidly click on the empty background of the desktop

Expected result

Literally nothing.

Actual result

The program closes

System Information

• OS: elementary OS 5.1.2 Hera
• Desktop Folder version: 1.1.2
• GTK 3.22.30

Terminal output

```
$ env G_MESSAGES_DEBUG=all com.github.spheras.desktopfolder
(com.github.spheras.desktopfolder:29595): Gtk-DEBUG: 18:23:48.685: Connecting to session manager
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.686: Application.vala:99: startup event
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.686: Application.vala:86: activate event
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.686: Application.vala:239: show_desktoppanel: true
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.710: FolderManager.vala:259: Monitoring: /home/gonza/Desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.710: DesktopWindow.vala:97: trying to hide
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.710: FolderManager.vala:1106: >>>>>>>>>>> INIT _sync_files for Panel:
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.710: DesktopManager.vala:83: hide_items false
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.710: FolderManager.vala:1114: >>>>>>>>>>>>>>>>>>>>>>>RESTARTING _sync_files 0 times for Panel
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.710: DesktopManager.vala:84: hiding items
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//pagina web.txt
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//steam.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Anexo III-Propuesta Proyec alumno.odt
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Servicio de incidencias.odt
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Servicio de incidencias.pdf
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Rutina biceps.png
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Supplyg
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Counter-Strike Global Offensive.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//libreoffice.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Remmina.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Cities Skylines.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//KeePass.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Business Tour - Online Multiplayer Board Game.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Minecraft launcher.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Lutris.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Eclipse.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//.desktopfolder
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Android Studio.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.711: FolderManager.vala:1149: syncing file found:/home/gonza/Desktop//Processing.desktop
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.789: DesktopWindow.vala:97: trying to hide
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.789: DesktopManager.vala:83: hide_items false
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.789: DesktopManager.vala:84: hiding items
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.789: DesktopWindow.vala:97: trying to hide
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.789: DesktopManager.vala:83: hide_items false
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.789: DesktopManager.vala:84: hiding items
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.789: FolderManager.vala:1281: >>>>>>>>>>> END _sync_files for Panel:
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.789: DesktopManager.vala:149: Dock window found: plank
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.793: DesktopManager.vala:149: Dock window found: wingpanel
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.797: DesktopManager.vala:128: DESKTOP SIZE CHANGED! (0,0) (1920,1080)
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:48.799: Application.vala:571: Monitoring: /home/gonza/Desktop

** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:49.311: Application.vala:637: desktop_visible is now true
** (com.github.spheras.desktopfolder:29595): DEBUG: 18:23:49.312: DesktopWindow.vala:94: refresh, icons enabled and desktop visibility = true
**
ERROR:arraylist.c:1199:gee_array_list_real_get: assertion failed: (index < _size)
Abortado
```