If a symbol contains pins with the same number, the ERC and inspection->compare symbols
erroneously (?) mark the symbol as different from the library.
see for example this schematic attached of a 3 pin molex of our library:
delme.kicad_sch (17.5 KB)
In our library the mounting pins are called MP and have all the same ‘number’ (MP).
I think that is not correct to have the same pin number for pins that are physically different, so we are changing that.
You reckon the fact that this is ‘confusing’ the ERC may be is worth a gitlab issue?