To reproduce:
1. Open promenade
2. Select any note in the F chord immediately before the first line break
3. Hit "s" to create a slur

Expected behavior:
The slur half on the second line should be selected so that one can Shift+Right to add notes to the slur

Actual behavior:
The slur half on the first line is still selected, so that notes cannot be added to the slur without selecting the half on the second line