Set the oid when a tag already exists.

When a tag already exists, it can be useful to directly have the oid
of the existed tag, just after trying to add it.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/tag.c b/src/tag.c
index 4132eef3b..6ae51b6f7 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -205,8 +205,10 @@ static int tag_create(
 
 	switch (error) {
 	case GIT_SUCCESS:
-		if (!allow_ref_overwrite)
+		if (!allow_ref_overwrite) {
+			git_oid_cpy(oid, git_reference_oid(new_ref));
 			return git__throw(GIT_EEXISTS, "Tag already exists");
+		}
 		should_update_ref = 1;
 		
 		/* Fall trough */