V10.1.4588 Request: Make filename disambiguation consistent

File > Export > Export messages as .EML disambiguates thus:

2006-12-11 01-03-00 Another spam forwarded by ToSpamtrap (1).eml

message list > Save As… disambiguated thus:

2006-12-11 01-03-00 Another spam forwarded by ToSpamtrap_1.eml

This inconsistency needlessly annoys downstream tools.

Please make the two use the same scheme.

Thanks.