$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-error.git /var/lib/mock/f45-build-41936-787/root/chroot_tmpdir/scmroot/rust-gix-error
Cloning into '/var/lib/mock/f45-build-41936-787/root/chroot_tmpdir/scmroot/rust-gix-error'...
$ git fetch origin 789026fd95bfcdf3b51359c2e871ecb8cf9a1941:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-error
 * [new ref]         789026fd95bfcdf3b51359c2e871ecb8cf9a1941 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 789026f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild