ESC during command causes OSC replies to be accepted as input #12379

Steps to reproduce:

0. foot -c /dev/null sh -c 'env HOME=$(mktemp -d) XDG_CONFIG_HOME= XDG_DATA_DIRS= fish'
1. Type sleep 1
2. Press enter
3. Within one second, press ESC key odd number of times (1, 3, 5)
4. Wait one second

Expected result: Same as pressing ESC after sleep finishes: no action by default, move to normal mode if vi key bindings configured.

Actual result: ]11;rgb:2424/2424/2424 input as command. Pressing enter returns fish: Unknown command: ']11', fish: Unknown command: rgb:2424/2424/2424.

Additional information: fish 4.3.3, foot 1.25.0