merge-base: handle --fork-point without reflog

diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index 79a611fda1f8b344ce619dd9318695a69eebb695..bfd0be44a91f66034c98361dc713cc0883693a69 100644 (file)
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -16,10 +16,20 @@ static void add_sought_entry(struct ref ***sought, int *nr, int *alloc,
        struct ref *ref;
        struct object_id oid;
 
-       if (!get_oid_hex(name, &oid) && name[GIT_SHA1_HEXSZ] == ' ')
-               name += GIT_SHA1_HEXSZ + 1;
-       else
+       if (!get_oid_hex(name, &oid)) {
+               if (name[GIT_SHA1_HEXSZ] == ' ') {
+                       /* <sha1> <ref>, find refname */
+                       name += GIT_SHA1_HEXSZ + 1;
+               } else if (name[GIT_SHA1_HEXSZ] == '\0') {
+                       ; /* <sha1>, leave sha1 as name */
+               } else {
+                       /* <ref>, clear cruft from oid */
+                       oidclr(&oid);
+               }
+       } else {
+               /* <ref>, clear cruft from get_oid_hex */
                oidclr(&oid);
+       }
 
        ref = alloc_ref(name);
        oidcpy(&ref->old_oid, &oid);