Merge branch 'sg/object-as-type-commit-graph-fix'

The commit-graph facility did not work when in-core objects that
are promoted from unknown type to commit (e.g. a commit that is
accessed via a tag that refers to it) were involved, which has been
corrected.

* sg/object-as-type-commit-graph-fix:
  object_as_type: initialize commit-graph-related fields of 'struct commit'

1 files changed, 8 insertions, 3 deletions

diff --git a/alloc.c b/alloc.c
index e7aa81b7aa..1c64c4dd16 100644
--- a/alloc.c
+++ b/alloc.c
@@ -99,18 +99,23 @@ void *alloc_object_node(struct repository *r)
 	return obj;
 }
 
-unsigned int alloc_commit_index(struct repository *r)
+static unsigned int alloc_commit_index(struct repository *r)
 {
 	return r->parsed_objects->commit_count++;
 }
 
-void *alloc_commit_node(struct repository *r)
+void init_commit_node(struct repository *r, struct commit *c)
 {
-	struct commit *c = alloc_node(r->parsed_objects->commit_state, sizeof(struct commit));
 	c->object.type = OBJ_COMMIT;
 	c->index = alloc_commit_index(r);
 	c->graph_pos = COMMIT_NOT_FROM_GRAPH;
 	c->generation = GENERATION_NUMBER_INFINITY;
+}
+
+void *alloc_commit_node(struct repository *r)
+{
+	struct commit *c = alloc_node(r->parsed_objects->commit_state, sizeof(struct commit));
+	init_commit_node(r, c);
 	return c;
 }