Copy subtitles for video blocks when VAL is not used

[bradenmacdonald]

openedx/openedx-platform#32346 (comment)

[bradenmacdonald]

@ormsbee How does one go about not using VAL? From what I can see, the feature flag is unused and edxval is installed by default and required (2) by some core modules.

(Re-posting since I accidentally asked you this on the wrong issue.)

[ormsbee]

@bradenmacdonald: It's not that edx-val can be disabled, but the VideoBlock doesn't necessarily have to use it. VideoBlock knows to query VAL if there is a edx_video_id attribute present, but it will fall back to its own various video source and transcript related attributes if there is no edx_video_id.

[bradenmacdonald]

@ormsbee Ah, right. Thanks :) I'll check into that.

[bradenmacdonald]

We looked into this and it seems like edx_video_id is always present, so will close this unless we get reports of some workflow that we haven't yet discovered which doesn't work.