$ git clone -n https://src.fedoraproject.org/rpms/gdl.git /var/lib/mock/f38-build-side-42-init-devel-1120748-30237/root/chroot_tmpdir/scmroot/gdl
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1120748-30237/root/chroot_tmpdir/scmroot/gdl'...
$ git fetch origin c0794376da80d8e2d65f5ab0ec89b224c68162bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gdl
 * [new ref]         c0794376da80d8e2d65f5ab0ec89b224c68162bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c079437 Update to 1.0.2