$ git clone -n https://src.fedoraproject.org/rpms/ghc-blaze-html.git /var/lib/mock/f45-build-10028-412/root/chroot_tmpdir/scmroot/ghc-blaze-html
Cloning into '/var/lib/mock/f45-build-10028-412/root/chroot_tmpdir/scmroot/ghc-blaze-html'...
$ git fetch origin f40294fda171f4f31b6b68635928486b6611c662:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-blaze-html
 * [new ref]         f40294fda171f4f31b6b68635928486b6611c662 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f40294f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild