run-after-edit-sequence in editor:basic<%>
This method is used to install callbacks that will be run after any edit-sequence completes.
( -> void
send an-editor:basic run-after-edit-sequence thunk tag)
thunk : (-> void)
tag = : (union symbol #f)#f
The procedure thunk will be called immediately if the edit is
not in an edit-sequence. If the edit is in an edit-sequence, it will
be called when the edit-sequence completes.
If tag is a symbol, the thunk is keyed on that symbol, and
only one thunk per symbol will be called after the
edit-sequence. Specifically, the last call to
run-after-edit-sequence's argument will be called.