$ git clone -n https://src.fedoraproject.org/rpms/compat-tolua++.git /var/lib/mock/f41-build-1046867-19101/root/chroot_tmpdir/scmroot/compat-tolua++
Cloning into '/var/lib/mock/f41-build-1046867-19101/root/chroot_tmpdir/scmroot/compat-tolua++'...
$ git fetch origin 0bf5e40800c43747819eb88d1d0353874d295745:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/compat-tolua++
 * [new ref]         0bf5e40800c43747819eb88d1d0353874d295745 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0bf5e40 Use hardened LDFLAGS when linking .so too