BinningIndexBuilder assumes no feature can be at offset 0

[cmnbroad]

For feature files with no header (like a BED file, which may have no header), 0 is a legitimate offset, even if the file is block gzipped and the offset represents a virtual file offset. However, the binning indexer always sets the window for a bin to the lowest feature offset for that bin that is not 0. i.e., BED files can have the first feature at offset 0.

Fixed in #906.

[cmnbroad]

A example where this issue manifests is in #820.

[magicDGS]

Dup of #393?

[cmnbroad]

@magicDGS I created this ticket so we could track the BinningIndexBuilder part of the issue separately from the .gz part. So there is some overlap, but not exactly a dup.

[cmnbroad]

Fixed via #906.