Bug Select2SlaveAJAXWidget not loading options [4.5.1]

[kmorkah]

found the related_fields example in Select2SlaveAJAXWidget code. There is no popup in select2 ajaxwidget.
It seems like this bug has been around for quite some time.

Environment

Flask-Appbuilder version: 4.5.1

pip freeze output:

apispec==6.6.1
attrs==24.2.0
babel==2.16.0
blinker==1.8.2
click==8.1.7
colorama==0.4.6
Deprecated==1.2.14
dnspython==2.6.1
email_validator==2.2.0
Flask==2.3.3
Flask-AppBuilder==4.5.1
Flask-Babel==2.0.0
Flask-JWT-Extended==4.6.0
Flask-Limiter==3.8.0
Flask-Login==0.6.3
Flask-SQLAlchemy==2.5.1
Flask-WTF==1.2.1
greenlet==3.1.0
idna==3.8
importlib_metadata==8.5.0
importlib_resources==6.4.5
itsdangerous==2.2.0
Jinja2==3.1.4
jsonschema==4.23.0
jsonschema-specifications==2023.12.1
limits==3.13.0
markdown-it-py==3.0.0
MarkupSafe==2.1.5
marshmallow==3.22.0
marshmallow-sqlalchemy==0.28.2
mdurl==0.1.2
ordered-set==4.1.0
packaging==24.1
pkgutil_resolve_name==1.3.10
prison==0.2.1
Pygments==2.18.0
PyJWT==2.9.0
python-dateutil==2.9.0.post0
pytz==2024.2
PyYAML==6.0.2
referencing==0.35.1
rich==13.8.1
rpds-py==0.20.0
six==1.16.0
SQLAlchemy==1.4.54
SQLAlchemy-Utils==0.41.2
typing_extensions==4.12.2
Werkzeug==3.0.4
wrapt==1.16.0
WTForms==3.1.2
zipp==3.20.1

Steps to reproduce

Run the related_fields example.
Load the create contact page.
Select a group
Open the select for sub-group

You will not see a pop-up as shown below.

[ThomasP0815]

Possible fix:

replace "select2.min.js" in templates/appbuilder/init.html with "select2.full.min.js"

<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.full.min.js" nonce="{{baselib.get_nonce()}}"></script>

stackoverflow
stackoverflow

related to #2021

[kmorkah]

Possible fix:

replace "select2.min.js" in templates/appbuilder/init.html with "select2.full.min.js"

<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.full.min.js" nonce="{{baselib.get_nonce()}}"></script>

stackoverflow stackoverflow

realated to #2021

Thanks for the advice. First of all, it's resolved.