Compare/diff does not show modification when 'from' is older than 'to'
When trying to compare two commits from one branch, and 'from' is older than 'to', gitlab says that: "There isn't anything to compare. f41715... and b6914b... are the same." Information is very misleading, as those commits differ.
Git commandline tool, when comparing with inverted order, prints adds as deletes/deletes as adds.
Detected in version 7.1.1 facfec4b