[Webkit-unassigned] [Bug 220640] New: Web Inspector: REGRESSION(?): Sources: switching resources sometimes doesn't update the content area

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220640

            Bug ID: 220640
           Summary: Web Inspector: REGRESSION(?): Sources: switching
                    resources sometimes doesn't update the content area
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: drousso at apple.com
                CC: inspector-bugzilla-changes at group.apple.com

# STEPS TO REPRODUCE
1. inspect <https://jakeshimabukuro.com/blog/2020/10/12/jake-shimabukuro-spoo-ukulele-halloween-concert/>
2. set an Attribute Modified DOM Breakpoint on `div.ut-particles-wrapper` (the parent wrapper of the "ORDER TICKETS - CLICK HERE!" link)
3. click the "ORDER TICKETS - CLICK HERE!" link
-> should pause
4. switch to a different Web Inspector tab and then go back to the Sources Tab
5. select a call frame in a different file (or a different resource lower down in the navigation sidebar)

# EXPECTED
the resource for the other call frame should be shown

# ACTUAL
nothing

# NOTES
closing and reopening the Sources Tab temporarily fixes the issue, but selecting a different Web Inspector tab and then going back to the Sources Tab causes the issue to start reproducing again

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