SUMMARY
On a wayland session, clicking and dragging an item in the application launcher favourites makes it still selected after letting go. clicking anywhere in the launcher after letting go of the dragged item acts like you clicked on the shortcut you were dragging before. Also if you try to click and drag another item, it will act as if you were still dragging the shortcut you initially dragged. 

A video is attached to visually show the above problems


STEPS TO REPRODUCE
1. Enter a plasma wayland session
2. Have something pinned in favourites of the application launcher
3. Drag one of the shortcuts
4. Stop dragging the shortcut
5(a). Click anywhere else in the favourites section that is not the shortcut you dragged
5(b). Try to hover over another shortcut
5(c). Try to drag a different shortcut

OBSERVED RESULT
5a. It acts as if the shortcut that was dragged was clicked.
5b. The other shortcuts will not have the highlight that is usually there
5c. The shortcut you were initially dragging moves to the cursor.

EXPECTED RESULT
5a. The shortcut is not being clicked so it should not be opening when it was not clicked.
5b. The shortcuts should be highlighted when hovered as normal
5c. The new shortcut you drag should be dragged, the one you were dragging before should not move to the cursor.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION