$ git clone -n https://src.fedoraproject.org/rpms/fast-cdr.git /var/lib/mock/f39-build-1465804-33617/root/chroot_tmpdir/scmroot/fast-cdr
Cloning into '/var/lib/mock/f39-build-1465804-33617/root/chroot_tmpdir/scmroot/fast-cdr'...
$ git fetch origin 1fe6b074002065cce233aa995b053f35bc38d858:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fast-cdr
 * [new ref]         1fe6b074002065cce233aa995b053f35bc38d858 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fe6b07 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild