$ git clone -n https://src.fedoraproject.org/rpms/rust-selinux0.4.git /var/lib/mock/f45-build-44760-816/root/chroot_tmpdir/scmroot/rust-selinux0.4
Cloning into '/var/lib/mock/f45-build-44760-816/root/chroot_tmpdir/scmroot/rust-selinux0.4'...
$ git fetch origin 3a606d18ed73a75a53624e18f8ac1eda075ce2a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-selinux0.4
 * [new ref]         3a606d18ed73a75a53624e18f8ac1eda075ce2a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a606d1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild