Dont' reinitalize themable selects once they've been initialized

[Diana Whitten]

init_themable_select should only work on things that have not already been initialized.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/360679

[OpenStack Infra (hudson-openstack)]

Change abandoned by Rob Cresswell (<email address hidden>) on branch: master
Review: https://review.openstack.org/360679
Reason: Abandoned due to inactivity. Please feel free to restore if you wish to work on it.

[Jeremy Moffitt (jeremy-moffitt)]

I tried testing the proposed fix for this and found that the problem ascribed here never actually occurs. The "if" statement in the is always true and only hits once per page load. I'm trying to track down additional information about the ticket, but this may be an unnecessary fix for a non-existent problem.

[Gloria Gu (gloria-gu)]

What the change Diana put there doesn't seem to have effect. So mark this invalid.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Ivan Kolodyazhny (<email address hidden>) on branch: master
Review: https://review.openstack.org/360679
Reason: This review is > 4 months without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.