Shutting up a warning.
[Fixes #73677734] Improving the withdrawal warning message.
[Fixes #73682082] [Fixes #73682964] Opening links from the entry form in new tabs.
[Fixes #73683446]  Display a form error message on bogus withdrawal.
[Fixes #73682620] Disallowing bogus email.
Tiny tweak for [#73682082].
[Fixes #73683882]
[Fixes #73683576]
[Fixes #73683664]
Starting to add some tests for the entry forms.