If the source's media type is known, src is not removed.

[reasonset]

Current Behavior:

If the media type of the relevant src is not ? when the src is changed, the source element is added but the value of the src attribute is not removed, so the media source is not actually changed.

Expected Behavior:

If src is changed, the source is set to the specified source regardless of whether the source's media type is known or not.

Steps To Reproduce:

1. Set the source to have the specified type using the HEAD fallback or an explicit {src, type} declaration
2. Switch the src to a different source
3. Switch the src to the source specified in step 1
4. Play the content

repro: https://codeberg.org/reasonset-tiny/repro-vidstack-update-src

Environment:

• Framework: Vanilla
• Meta Framework: None
• Node: None
• Device: PC, Android
• OS: Linux, ColorOS16

Anything Else?