Luis Javier Merino authored Dec 06, 2021 and Tomaz Canabrava committed Dec 28, 2021

Every time the selection is changed, the selection text is retrieved to
check whether to enable or disable the copy actions. Besides that, the
selection text is also used for the web search context menu entries.

Better just check if the selection is empty and make a note that the
selection changed, so the next time the context menu is invoked it can
retrieve the current selection text, which should happen much less often
than selection changes.