Bug fix to the pileup constructor. #1127
Merged
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We call constructor and destructor for each new bam object that is added to and removed from the pileup. Pileup also takes its own copy of the bam1_t struct as sam_read1 loops may be using the same structure over and over again.
However the constructor was called with the passed in bam1_t instead of pileups own copy of it (unlike destructor). Hence anything the constructor attempts to cache, such as the location of an aux tag, may get written over.