How to reproduce

• Open the search tool
• Do a search
• Select multiple contents by ctrl + shift + clic

Actual behavior

• For N selected contents, the selection change event is fired N times
• For N selected contents (N x M) requests are sent (M is the number of ribbon controls or tools which listening on a selection change event on contents)
• The selection is quite long

Expected behavior

• The selection of the N contents must be instantaneous