@disablenosel bug

Using @disablenosel:type=*.(bmp|gif|heic|jpg|jpeg|jfif|png|tif|tiff|webp) in a button to write clipboard text to metadata fields,
when multiple images selected and if one (or more) of those files is say a .txt file then the button will still be enabled (and usable).
Not sure if this is a bug or not but trying to write the metadata to such a selction will result in a metadata error dialog.
It would preferable in such cases for the button to remain disabled please.

Not a bug. The manual explicitly says:

It is not required that all selected files match the pattern; only one.