$ git clone -n https://src.fedoraproject.org/rpms/kf5-baloo.git /var/lib/mock/f45-build-14766-463/root/chroot_tmpdir/scmroot/kf5-baloo
Cloning into '/var/lib/mock/f45-build-14766-463/root/chroot_tmpdir/scmroot/kf5-baloo'...
$ git fetch origin 2a826a12c66bb7b9db37b7e517ef2d0757766ca9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-baloo
 * [new ref]         2a826a12c66bb7b9db37b7e517ef2d0757766ca9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a826a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild