$ git clone -n https://src.fedoraproject.org/rpms/glycin.git /var/lib/mock/f41-build-side-1-3108692-39383/root/chroot_tmpdir/scmroot/glycin
Cloning into '/var/lib/mock/f41-build-side-1-3108692-39383/root/chroot_tmpdir/scmroot/glycin'...
$ git fetch origin 001b7847fc2167d34f5a562ad513e0b9ea0925b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/glycin
 * [new ref]         001b7847fc2167d34f5a562ad513e0b9ea0925b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 001b784 Move libglycin-gtk4 into subpackages