Initially found by automated repository health checks used by Termux
in https://github.com/termux/termux-packages/issues/27472
The root problem was 4.3.5a comparing less than 4.3.5-rc1-1 by aptly
According to debian "4.3.5a" > "4.3.5-rc1-1"
This is because dpkg splits hyphen for revision at the first hyphen,
whereas aptly was splitting at the last hyphen which is different from
dpkg's behaviour.
dpkg behaviour: https://git.dpkg.org/cgit/dpkg/dpkg.git/tree/lib/dpkg/parsehelp.c#n242
Perhaps this wasn't detected as there was broken tests in the repository
since the initial commit of aptly. This also fixes those tests