Samtools Mpileup And Overlapping Paired-End Reads

I am using samtools mpileup to generate a pileup for paired-end RNA sequencing data. I am curious about how samtools handles pair mates whose read mappings overlap. With regard to the simple example below, for positions 7-11, are both pair mates enumerated?

position     1    6    11   16
reference    ATGCATGCATGCATGC
pair mate 1  ATGCATGCATG
pair mate 2'       GCATGCATGC    (reverse complemented)

I am parsing the pileup output to quantify RNA editing at some positions and do not want to count an 'RNA molecule' twice just because the read pair mates 'overlapped.'

Thanks.