[Ohrrpgce] SVN: teeemcee/10998 When dismissing an overlay message by clicking, don't clear the click

[subversion at HamsterRepublic.com]

teeemcee
2019-03-01 21:50:54 -0800 (Fri, 01 Mar 2019)
244
When dismissing an overlay message by clicking, don't clear the click

This was added in r9009, but I think maybe it's not the right thing to do,
since you're not clicking on the overlay message itself, you're trying to click
on something else.
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U   wip/common.rbas