JoaoMarcos44 (inline py_structure.py:49, review 5408439923; reproduced by
andrexibiza): nesting_depth() treated any If that sits alone in an orelse as
an `elif`, but `else:\n if b:` produces the same AST. Seven physical
`else: if` levels measured 1 (adding an inert `pass` made them measure 7), so
the gate depended on an irrelevant statement rather than on indentation.
A real `elif` If node starts at the `elif` keyword, i.e. at its `if`'s
column; an `if` nested under `else:` must be indented deeper (a compound
statement cannot follow `else:` on the same line). Only the former keeps the
depth. Seven physical levels now measure 7 with or without the inert pass
and block; a genuine seven-arm elif chain stays at 1 and passes.
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