Different results than shown in BAM
Hello, thank you for making this tool for discovering BAM coverage.  I have small issue about different 

I run this command: 
mosdepth --by VP_epi.bed --thresholds 0,1,10,20,30 output intput.bam -Q 10 

But the number of covered bases are not same as if I open my BAM in IGV, example given below:

Output threshold file, one of the lines:
#chrom	start	end	region	0X	1X	10X	20X	30X

chr19 | 13321430 | 13321466 | NM_001127221.1_cds_3_0_chr19_13321431_r | 36 | 36 | 23 | 0 | 0

<img width="1003" alt="Snímek obrazovky 2020-08-11 v 13 30 40" src="https://user-images.githubusercontent.com/14347491/89892586-2dbc7b00-dbd7-11ea-8eef-4de2da29233b.png">

In IGV, I can see that the lowest coverage in this region is 11 - is there any difference in read counts in IGV vs read count by your tool?






