Verify that removal of one of the multiple projects, all of which are associated with the same frame, doesn't lead navigator to discard the frame treenode.
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Adding urls
top
127.0.0.1:8000
devtools/resources
inspected-page.html
localhost:8080
LayoutTests/inspector/debugger/foo/bar
script.js
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Removing contentScripts project
top
127.0.0.1:8000
devtools/resources
inspected-page.html
localhost:8080
LayoutTests/inspector/debugger/foo/bar
script.js