[Ohrrpgce] SVN: teeemcee/8612 Fix weird bug where you couldn't edit textbox choices after making any c

[subversion at HamsterRepublic.com]

teeemcee
2017-04-05 05:19:18 -0700 (Wed, 05 Apr 2017)
371
Fix weird bug where you couldn't edit textbox choices after making any change to a textbox.

What was happening was that SaveTextBox was padding the choice() text up
to max length with invisible NUL bytes, a bug that's existed for 9 years.
But until recently, r8238, SaveTextBox was only called immediately
before quitting or switching to a different box, hiding the bug.
---
U   wip/loading.rbas