$ git clone -n https://src.fedoraproject.org/rpms/koji-tool.git /var/lib/mock/f41-build-1726438-24650/root/chroot_tmpdir/scmroot/koji-tool
Cloning into '/var/lib/mock/f41-build-1726438-24650/root/chroot_tmpdir/scmroot/koji-tool'...
$ git fetch origin 790b22b227be70775c7a393949e379db14a2c41f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/koji-tool
 * [new ref]         790b22b227be70775c7a393949e379db14a2c41f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 790b22b https://hackage.haskell.org/package/koji-tool-1.2/changelog