Intermittent refresh problems in Safari

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There is some definite weirdness related to refresh processing in Safari. It 
appears to have various manifestations, hence this rather wishy-washy 
description.

Once concrete example is described in issue 539, where the disabled model 
item property and class name get correctly set on a control, but Safari 
sometimes doesn't update the view until some other, seemingly unconnected, 
event occurs (e.g. selecting a menu item like Edit > Preferences... or 
Develop > Show Web Inspector).

Another concrete example came when I arrived at a fix for issue 525. In the 
regression test for that issue, an output control doesn't appear to update 
when its bound node updates. Again, as before, the control in question 
suddenly refreshes later on, almost of its own accord.

In both cases, I've stepped through in the debugger and verified that 
everything appears to be working correctly in our own code. Indeed, in the 
second example, it appears that the very act of single-stepping in the 
debugger causes the symptom to disappear.

Original issue reported on code.google.com by phil.boo...@gtempaccount.com on 30 Sep 2009 at 12:05

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Original comment by phil.boo...@gtempaccount.com on 30 Sep 2009 at 12:37

• Changed state: Started

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Original comment by phil.boo...@gtempaccount.com on 30 Sep 2009 at 2:59

• Added labels: Iteration-20090925

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[deleted comment]

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I've discovered that the second example described above is actually caused by 
the 
proposed fix for issue 525 and am about to propose an alternative fix for said 
issue. 
Since that only leaves the first example described above, for which there is 
already an 
issue, I am closing this issue as Invalid.

Original comment by phil.boo...@gtempaccount.com on 1 Oct 2009 at 2:08

• Changed state: Invalid