$ git clone -n https://src.fedoraproject.org/rpms/ghc-persistent.git /var/lib/mock/f40-build-744844-111851/root/chroot_tmpdir/scmroot/ghc-persistent
Cloning into '/var/lib/mock/f40-build-744844-111851/root/chroot_tmpdir/scmroot/ghc-persistent'...
$ git reset --hard d66fe3b3cf94e16bb70d4e02bd35cbe1b2eeee23
HEAD is now at d66fe3b update to 2.14.5.1