This is a great improvement, thanks!
Could we also have the opposite? I.e. filter strings for translated differently to the source language.
This is useful when the source and target languages are related, like if one is American English (en_US) and the other is British English (en_GB), and we want to see what the differences are.
The filter would be: same_source_and_translation:false
Or if negation is allowed: -same_source_and_translation:true