$ git clone -n https://src.fedoraproject.org/rpms/rapidsvn.git /var/lib/mock/f45-build-34321-684/root/chroot_tmpdir/scmroot/rapidsvn
Cloning into '/var/lib/mock/f45-build-34321-684/root/chroot_tmpdir/scmroot/rapidsvn'...
$ git fetch origin c7326c44a7d4e589377974400c26d26598ec7f1f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rapidsvn
 * [new ref]         c7326c44a7d4e589377974400c26d26598ec7f1f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c7326c4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild