auto-hiding taskbar causes refresh problems

["Phil Betts" <Phil dot Betts at heis dot co dot uk>]

Hi folks,

To recreate this small bug:
1) Disable taskbar auto-hiding
2) Start X in multiwindow mode
3) Enable taskbar auto-hiding

Now, nothing is rendered into the area where the taskbar used to be.
Previously rendered areas can be dragged into the taskbar zone without
being erased, but if they become obscured, they will not be refreshed on
exposure.

I can't imagine this affecting too many people, I only found it because
I
needed to temporarily disable auto-hiding while I was testing the
various
options for starting X, so there's no rush.

FYI, this is on NT4, server release: 4.3.0.65

Phil



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