$ git clone -n https://src.fedoraproject.org/rpms/mingw-nettle.git /var/lib/mock/f45-build-18607-524/root/chroot_tmpdir/scmroot/mingw-nettle
Cloning into '/var/lib/mock/f45-build-18607-524/root/chroot_tmpdir/scmroot/mingw-nettle'...
$ git fetch origin 99f0fd0fa8fccd1e46ef275d0c9ade1930127809:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-nettle
 * [new ref]         99f0fd0fa8fccd1e46ef275d0c9ade1930127809 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99f0fd0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild