$ git clone -n https://src.fedoraproject.org/rpms/rust-glib0.20.git /var/lib/mock/f45-build-42025-788/root/chroot_tmpdir/scmroot/rust-glib0.20
Cloning into '/var/lib/mock/f45-build-42025-788/root/chroot_tmpdir/scmroot/rust-glib0.20'...
$ git fetch origin 5af8fbd0f4367aa08de46d64a318832b0dc78c19:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-glib0.20
 * [new ref]         5af8fbd0f4367aa08de46d64a318832b0dc78c19 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5af8fbd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild