$ git clone -n https://src.fedoraproject.org/rpms/rust-tower-test.git /var/lib/mock/f45-build-45583-824/root/chroot_tmpdir/scmroot/rust-tower-test
Cloning into '/var/lib/mock/f45-build-45583-824/root/chroot_tmpdir/scmroot/rust-tower-test'...
$ git fetch origin 0a22db30c236ead6c56c44b0d4b660fb4eb09450:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tower-test
 * [new ref]         0a22db30c236ead6c56c44b0d4b660fb4eb09450 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a22db3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild