Describe the bug

Hello,

The indeterminate state of the form check is not visible anymore (all browsers).

I bisected down to version 0.24.13 which is first version where the indeterminate state is broken.

I suspect the addition of the .attr modifier to be the cause of the problem:

bootstrapvuenext-v0.24.12...bootstrapvuenext-v0.24.13#diff-fe736d79412d0c67d64c9eb398a2089cacec94461d0f69f5376ad66caa9bcd3eR23

Thanks for all the all work on this project!

Reproduction

https://stackblitz.com/edit/github-tzq5ew?file=src%2Fcomponents%2FComp.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.