Describe the bug

Forms gets submitted even though b-form-tags required and initial value is empty array

Steps to reproduce the bug

1. Go to CodeSandbox
2. Click on Submit button and see the Please fill in this field message
3. Fill in first input and click on Submit button again
4. See error. Forms gets submitted even though b-form-tags required and not filled in

Expected behavior

Trigger Please fill in this field message if b-form-tags prop required set to true and value is empty

Versions

Libraries:

• BootstrapVue: 2.18.1
• Bootstrap: 4.5.3
• Vue: 2.6.12

Environment:

• Device: Mac
• OS: macOS Catalina
• Browser: Chrome
• Version: 87.0.4280.67 (Official Build) (x86_64)

Demo link

CodeSandbox

Additional context

I have tried setting form and input-type prop and it didn't help. Also, I have tried specifying different initial values in b-form-tags v-model such as null, undefined, empty array, empty string.