$ git clone -n https://src.fedoraproject.org/rpms/notmuch.git /var/lib/mock/f31-build-63416-29353/root/chroot_tmpdir/scmroot/notmuch
Cloning into '/var/lib/mock/f31-build-63416-29353/root/chroot_tmpdir/scmroot/notmuch'...
$ git reset --hard 669d65f5bb6744b4f996649ff0e88eb68998d5cf
HEAD is now at 669d65f verify package signature