[4.0] Fix media manager file rename

[wilsonge]

Pull Request for Issue #28896 .

Summary of Changes

Fixes the ability to rename a file in media manager. This was broken in #28896 and was shows by the drone tests failing - unfortunately I still merged it anyway :)

Testing Instructions

Before patch check renaming a file with a new name gives a success message but it isn't actually renamed

Check that renaming a file to a different name works (also test that renaming a file and hitting save without saving it also works (i.e. gives a successfully renamed message).

Also check drone now passes

Documentation Changes Required

None

[dgrammatiko]

I think you need the newAdapter there, otherwise this is fine,

PS ignore me this is fine

[richard67]

@wilsonge What means "hitting save without saving it" in the testing instructions? Or did you maybe mean "hitting save without renaming it"?

[richard67]

I have tested this item ✅ successfully on b1dd3e7

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[Quy]

I have tested this item ✅ successfully on b1dd3e7

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[Quy]

RTC

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[obuisard]

I have tested this item ✅ successfully on b1dd3e7

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[richard67]

Thanks to all.