$ git clone -n https://src.fedoraproject.org/rpms/mingw-libtiff.git /var/lib/mock/f45-build-18584-523/root/chroot_tmpdir/scmroot/mingw-libtiff
Cloning into '/var/lib/mock/f45-build-18584-523/root/chroot_tmpdir/scmroot/mingw-libtiff'...
$ git fetch origin ec25c7df4bfb1b33784a7c364b58436a46fc238d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-libtiff
 * [new ref]         ec25c7df4bfb1b33784a7c364b58436a46fc238d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec25c7d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild