fix load_object_ids() such that packing tags works if zero commits are packed reported by jrick and op
diff --git a/lib/pack_create.c b/lib/pack_create.c
index c35a034..65a0185 100644
--- a/lib/pack_create.c
+++ b/lib/pack_create.c
@@ -1456,7 +1456,7 @@ load_object_ids(int *ncolored, int *nfound, int *ntrees,
err = findtwixt(&ids, &nobj, ncolored, ours, nours, theirs, ntheirs,
repo, progress_cb, progress_arg, rl, cancel_cb, cancel_arg);
- if (err || nobj == 0)
+ if (err)
goto done;
for (i = 0; i < ntheirs; i++) {