$ git clone -n https://src.fedoraproject.org/rpms/rust-purl.git /var/lib/mock/f45-build-44118-810/root/chroot_tmpdir/scmroot/rust-purl
Cloning into '/var/lib/mock/f45-build-44118-810/root/chroot_tmpdir/scmroot/rust-purl'...
$ git fetch origin 89d05cc47ea181883ea9199eaf72d1dd78649a9f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-purl
 * [new ref]         89d05cc47ea181883ea9199eaf72d1dd78649a9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89d05cc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild