commit d2c2d78192e0bcd012717d912831c878081bf2f8
from: Stefan Sperling <stsp@stsp.name>
date: Sun Nov 18 20:46:12 2018 UTC

fix comparison of parents content in advance_branch()

commit - 6dcdad080328627983a3d6f2234e195d67feff8f
commit + d2c2d78192e0bcd012717d912831c878081bf2f8
blob - f1b2429b1df1def03a126f6ab25fd1e1f5d9694b
blob + be53a1239bba3e566f78483c4445ede4cf3ec773
--- lib/commit_graph.c
+++ lib/commit_graph.c
@@ -322,7 +322,7 @@ advance_branch(struct got_commit_graph *graph,
 
 			if (prev_id) {
 				if (!branches_differ &&
-				    got_object_id_cmp(merged_id, prev_id) != 0)
+				    got_object_id_cmp(id, prev_id) != 0)
 					branches_differ = 1;
 				free(prev_id);
 			}