$ git clone -n https://src.fedoraproject.org/rpms/ghc-crypton-x509-store.git /var/lib/mock/f45-build-10171-414/root/chroot_tmpdir/scmroot/ghc-crypton-x509-store
Cloning into '/var/lib/mock/f45-build-10171-414/root/chroot_tmpdir/scmroot/ghc-crypton-x509-store'...
$ git fetch origin cafde6854f6dd16ec561cc1fb0d88d2dad05fbb3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-crypton-x509-store
 * [new ref]         cafde6854f6dd16ec561cc1fb0d88d2dad05fbb3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cafde68 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild