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    Bug 
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    Resolution: Unresolved
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    P2: Important 
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    None
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    4.7.1
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    None
If an object is exported on D-Bus via ExportChildObjects, and that object emits a signal, the signal emission is not transmitted over D-Bus.
I can confirm that using the ExportAllSignals flag doesn't make a difference.
For clarity, to reproduce the bug, start ./master first, then start ./slave. 5 seconds after starting master, the child object will emit a fooChanged signal. The slave is listening for that signal, but the connected slot is not invoked.