Don't do work when setting document.text = document.text; fixes strange performance bug in astraea (don't quite understand why).
Don't do work when setting document.text = document.text; fixes strange
performance bug in astraea (don't quite understand why).

Alwnikrotikz/pyglet,Austin503/pyglet,xshotD/pyglet,kmonsoor/pyglet,mpasternak/michaldtz-fix-552,mpasternak/pyglet-fix-issue-552,Austin503/pyglet,shaileshgoogler/pyglet,mpasternak/michaldtz-fix-552,cledio66/pyglet,mpasternak/michaldtz-fixes-518-522,mpasternak/pyglet-fix-issue-518-522,arifgursel/pyglet,google-code-export/pyglet,gdkar/pyglet,qbektrix/pyglet,mpasternak/pyglet-fix-issue-552,odyaka341/pyglet,mpasternak/pyglet-fix-issue-552,odyaka341/pyglet,shaileshgoogler/pyglet,arifgursel/pyglet,cledio66/pyglet,mpasternak/pyglet-fix-issue-518-522,odyaka341/pyglet,Alwnikrotikz/pyglet,cledio66/pyglet,arifgursel/pyglet,cledio66/pyglet,shaileshgoogler/pyglet,Austin503/pyglet,odyaka341/pyglet,xshotD/pyglet,mpasternak/michaldtz-fixes-518-522,mpasternak/michaldtz-fix-552,Alwnikrotikz/pyglet,kmonsoor/pyglet,mpasternak/michaldtz-fixes-518-522,arifgursel/pyglet,google-code-export/pyglet,shaileshgoogler/pyglet,Alwnikrotikz/pyglet,arifgursel/pyglet,qbektrix/pyglet,gdkar/pyglet,gdkar/pyglet,cledio66/pyglet,kmonsoor/pyglet,Austin503/pyglet,mpasternak/pyglet-fix-issue-518-522,qbektrix/pyglet,mpasternak/pyglet-fix-issue-518-522,mpasternak/michaldtz-fix-552,Austin503/pyglet,Alwnikrotikz/pyglet,mpasternak/michaldtz-fixes-518-522,kmonsoor/pyglet,google-code-export/pyglet,google-code-export/pyglet,odyaka341/pyglet,mpasternak/pyglet-fix-issue-552,shaileshgoogler/pyglet,google-code-export/pyglet,qbektrix/pyglet,xshotD/pyglet,gdkar/pyglet,xshotD/pyglet,gdkar/pyglet,xshotD/pyglet,qbektrix/pyglet,kmonsoor/pyglet