$ git clone -n https://src.fedoraproject.org/rpms/rust-lcms2.git /var/lib/mock/f45-build-42864-797/root/chroot_tmpdir/scmroot/rust-lcms2
Cloning into '/var/lib/mock/f45-build-42864-797/root/chroot_tmpdir/scmroot/rust-lcms2'...
$ git fetch origin 45ceb54b2aa290b20c110f5f59de5abef33b2055:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lcms2
 * [new ref]         45ceb54b2aa290b20c110f5f59de5abef33b2055 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45ceb54 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild