There are, though, two more related issues I noticed with this function:
the first concerns the readability; the second may be a bug in how a
minor entry under certain conditions overrides a previous one.

The first, relating to readability: I found it quit difficult to follow
the flow of the functionʼs code due to its nesting and idiosyncratic
order of condition checking.  I want to, therefore, propose a
restructured version, which I believe to be functionally equivalent.