posted 10 years ago
From the description given on the dialog box, I would guess that
1) All changes in revisions 15, 16, ... 30 are merged into the branch.
2) Only revision 30 is merged into the branch.
3) Revisions 11, 12, ... 30 are merged into the branch (all revisions made since the branch was created at revision 10. (Though based on your text, the branch you created was probably revision 11 in which case the list of revisions to merge would start at 12).