$ git clone -n https://src.fedoraproject.org/rpms/ghc-isocline.git /var/lib/mock/f45-build-10476-418/root/chroot_tmpdir/scmroot/ghc-isocline
Cloning into '/var/lib/mock/f45-build-10476-418/root/chroot_tmpdir/scmroot/ghc-isocline'...
$ git fetch origin c4ea9b38dfbdbc8bd616508dc1b596a046339bc5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-isocline
 * [new ref]         c4ea9b38dfbdbc8bd616508dc1b596a046339bc5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4ea9b3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild