Describe the bug

Hi,

I am using the BFormCheckboxGroup and provide an options array with strings. In my use case one of the options can also be the empty string (""), but when the checkbox of the empty string is selected v-model returns [true] as the selected options instead of [""] (see attached stackblitz).

Reproduction

https://stackblitz.com/edit/github-6phuvv?file=src%2FApp.vue

Used Package Manager

npm

Validations

• Have tested with the latest version. This is still alpha version and sometime things change rapidly.
• Follow our Code of Conduct
• Read the Contributing Guide.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• The provided reproduction is a minimal reproducible of the bug.