$ git clone -n https://src.fedoraproject.org/rpms/golang-gorgonia-vecf64.git /var/lib/mock/f45-build-49649-884/root/chroot_tmpdir/scmroot/golang-gorgonia-vecf64
Cloning into '/var/lib/mock/f45-build-49649-884/root/chroot_tmpdir/scmroot/golang-gorgonia-vecf64'...
$ git fetch origin 90881e42f26497fc3d39adab3ef6954b3d86ca0b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gorgonia-vecf64
 * [new ref]         90881e42f26497fc3d39adab3ef6954b3d86ca0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90881e4 Rebuild for https://fedoraproject.org/wiki/Changes/golang1.26