$ git clone -n https://src.fedoraproject.org/rpms/libtexprintf.git /var/lib/mock/f45-build-17078-495/root/chroot_tmpdir/scmroot/libtexprintf
Cloning into '/var/lib/mock/f45-build-17078-495/root/chroot_tmpdir/scmroot/libtexprintf'...
$ git fetch origin 06c6f1e7f7a4092568f2278f9c9e5eee42070d4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libtexprintf
 * [new ref]         06c6f1e7f7a4092568f2278f9c9e5eee42070d4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 06c6f1e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild