The issue was introduced in commit 05132fd5a7.
Where it was defined an algorithm:
2.4) FSD is not null and FED is not null:
2.4.1) APED is null: Check if APSD is between FSD and FED
This was wrong, it should be:
2.4) FSD is not null and FED is not null:
2.4.1) APED is null: Check if APSD is lower or equals than FSD or APSD is
lower or equals than FED
FEA: ItEr77S04BugFixing