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Since the comment variable is used later in the function for other purposes. It is necessary to NULL the variable so it can be differentiated as a new allocation from the previous use remenants (which have already been freed) to avoid using an already freed pointer in the assignment comment = cp ? *cp : comment. When the code path is such that comment has not been reset. This entire set of patches passed the regression tests on my system. Bug found by Coverity. Signed-off-by: Kylene Hal...