Autocomplete doesn't work when editing a note

Noticed this on dev so this likely needs to be fixed for %9.3:

assigned to @MadLittleMods

mentioned in merge request !12106 (merged)

mentioned in commit 1d93e262

mentioned in commit 4182e3fa

closed via commit b75b3bf3

closed via commit 4182e3fa

mentioned in commit b75b3bf3

mentioned in commit c15078e0

mentioned in commit 245900e6

mentioned in issue #33862 (closed)

mentioned in merge request !14785