$ git clone -n https://src.fedoraproject.org/rpms/compat-tolua++.git /var/lib/mock/f45-build-5423-339/root/chroot_tmpdir/scmroot/compat-tolua++
Cloning into '/var/lib/mock/f45-build-5423-339/root/chroot_tmpdir/scmroot/compat-tolua++'...
$ git fetch origin 0e788b731767e10231fe1888918699fe2e3ebcee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/compat-tolua++
 * [new ref]         0e788b731767e10231fe1888918699fe2e3ebcee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e788b7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild