[crash] Query filters conflict with some client filters

[suhaibmujahid]

bugbot/bugbot/crash/analyzer.py

Lines 725 to 734 in 00860cf

	# TODO(investigate): should we do a local filter instead of the
	# following (should we exclude the signature if one of the crashes
	# is a shutdown hang?):
	# If the `ipc_shutdown_state` or `shutdown_progress` field are
	# non-empty then it's a shutdown hang.
	"ipc_shutdown_state": "__null__",
	"shutdown_progress": "__null__",
	# TODO(investigate): should we use the following instead of the
	# local filter.
	# "oom_allocation_size": "!__null__",