Fix HTML ID in place edit form

The form for editing places referred to an ID that does not exist, due
to some kind of copy-and-paste error most probably. Use the correct ID
to make the HTML valid.
Load editors for votes in load_everything_for_edits

The code factored out into a load_everything_for_edits function in
commit 55fe59cff8af591ada077510a96482ea2f15836c appeared to load
editors for both votes and edit notes attached to an edit, but in
reality only did so for edit notes due to a syntactical bug. The only
place where it actually matters (displaying a single edit) had
slightly different code without the bug.

Change the function to always load editors for votes, too.
Merge remote-tracking branch 'chirlu/fix-place-form' into beta

* chirlu/fix-place-form:
  Fix HTML ID in place edit form
Merge remote-tracking branch 'chirlu/mbs-5897' into beta

* chirlu/mbs-5897:
  Load editors for votes in load_everything_for_edits