+=========
+
+special commit tags
+
+[git-debrebase split mixed commit: debian part]
+[git-debrebase split mixed commit: upstream part]
+[git-debrebase convert dgit import: debian changes]
+[git-debrebase convert dgit import: upstream changes]
+
+[git-debrebase new-upstream combine . [PIECES...]]
+[git-debrebase new-upstream breakwater NEW-UPSTREAM-VERSION]
+[git-debrebase new-upstream changelog NEW-UPSTREAM-VERSION]
+
+[git-debrebase gbp2debrebase drop-patches]
+[git-debrebase declare-upstream breakwater]
+
+m{^\[git-debrebase (?:\w*-)?upstream combine \.((?: $extra_orig_namepart_re)+)\]}
+