When I copy a part containing lyrics, then the lyrics in the lyric window become doubled. Step by step:
1. Write some music and insert lyrics.
2. Copy the part to another measure/staff without filter (or with lyrics enabled).
3. Check the lyrics window - the copied lyrics are now added to the end.
To prevent this, I have to turn copying lyrics off in the filter settings, then first copy the notes alone and then - by using clone lyrics function - copy it again.
So, if you could repair this, that would be great!