Steps to reproduce the bug

In Edge Legacy open any web-page where bootstrap-vue@2.21.0 or newer is used (minified-production bundle, dev-bundle seems to be ok).
For example official docs:
https://bootstrap-vue.org/docs/components/form-input
https://bootstrap-vue.org/docs/components/form-textarea
Try typing text into any input/textarea on the page - in Edge Legacy nothing can be typed. In Chrome, Firefox and Edge (chromium) text can be typed.

Versions

Libraries:

• BootstrapVue: 2.21.3
• Bootstrap: 4.5.3
• Vue: 2.6.12

Environment:

• Browser: Edge Legacy
• Version: Microsoft Edge 44.17763.831.0, Microsoft EdgeHTML 18.17763

Additional information:

Issue appears only in production bundle!!! Development bundle seems to work fine.
bootstrap-vue: 2.20.1 works fine. 2.21.0+ seems to be broken.