Fixed profiler report under an exception of a sub-request #3618
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When a sub-request contains an exception, PdoProfilerStorage was entering in an infinite loop.
Fixed by preventing the read/createProfileFromData recursion.
I experienced this situation when I was trying to consume an undefined variable in a twig template which was part of a sub-request (ESI template).
Associated issue: #3620
This is a PR against 2.0 branch from original PR 3609 #3609