fix-2431.diff
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A fix that lock the cahced value for the longDnsAllowed attribute already
in the completed callback and unclock in apply or abort callback
Can be applied on ticket-2431 branch

lldtest_fix-trace.diff
----------------------
Enables tracing of osafsmfd and adds some TRACES tagged with LLDTEST
Can be applied on ticket-2431 branch after fix-2431.diff has been applied

osafsmfd
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Trace when running test case that reproduces the problem.
Found problem is that in apply callback longDnsAllowed has no value (nullptr)
See specifically tag LLDTEST1

syslog
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Corresponding syslog