$ git clone -n https://src.fedoraproject.org/rpms/cabal-install.git /var/lib/mock/f41-build-side-1-2872627-34370/root/chroot_tmpdir/scmroot/cabal-install
Cloning into '/var/lib/mock/f41-build-side-1-2872627-34370/root/chroot_tmpdir/scmroot/cabal-install'...
$ git fetch origin dcaf424ec4424c878a088911b66fcd91273cad6f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cabal-install
 * [new ref]         dcaf424ec4424c878a088911b66fcd91273cad6f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dcaf424 update to 3.10.3.0