Accidentally dragging a link within Moodle on a course page with editing mode results in a modal window

Steps to reproduce:

• Login as admin
• Enable the experimental setting $CFG->dndallowtextandlinks
• Login as teacher
• Go to a course
• Enable editing mode
• Add an arbitrary activity to the course
• Go to the course main page again
• Open the Edit menu of the created activity
• Put the mouse button down on the "Edit settings" menu item, move the mouse pointer at least 1 pixel, release the mouse button - just like you would click the icon and would move the mouse minimally during the blick by accident

Expected behaviour:

• Although the menu item was, technically, dragged and not clicked, the edit page is shown

Actual behaviour:

• As the menu item was technically dragged and as there is the feature to drag links to the course page, a modal window asking "What do you want to call this link?" will appear
• The user, most probably not knowing this DnD feature, is confused.

Possible solutions:

• Trigger the DnD feature only after the mouse pointer has been dragged for more than a reasonable threshold (say 30 pixels)
• Trigger the DnD feature only if the source of the drag operation came from outside the Moodle browser tab, i.e. from a different tab or another application or the operating system environment