$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-trace.git /var/lib/mock/f45-build-42040-788/root/chroot_tmpdir/scmroot/rust-gix-trace
Cloning into '/var/lib/mock/f45-build-42040-788/root/chroot_tmpdir/scmroot/rust-gix-trace'...
$ git fetch origin d5a6cf545317ab9eda5fab7f48af31d5c7dd7916:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-trace
 * [new ref]         d5a6cf545317ab9eda5fab7f48af31d5c7dd7916 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5a6cf5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild