$ git clone -n https://git.cclinux.org/stage/rpms/ghc-stm.git /home/mockroot/dist-circle8-ppc64le-build-52475-12800/root/chroot_tmpdir/scmroot/ghc-stm
Cloning into '/home/mockroot/dist-circle8-ppc64le-build-52475-12800/root/chroot_tmpdir/scmroot/ghc-stm'...
$ git reset --hard ef31c9a994263490df2421839e1bf410b2b2a4a0
HEAD is now at ef31c9a import ghc-stm-2.4.4.1-5.el8