fix: show placeholder item when an empty item is selected #7303
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Description
Fixes #7243
Restored
_hasContent
check which was removed by mistake in #2282.Can be tested with the following snippet:
Without a fix, selecting first (empty) item makes it show in the value button, which is not a desirable behavior.
The correct behavior in this case is to not attach selected item and show the placeholder item instead.
Type of change