$ git clone -n https://src.fedoraproject.org/rpms/mozjs91.git /var/lib/mock/f37-build-side-32-misc-devel-195441-12785/root/chroot_tmpdir/scmroot/mozjs91
Cloning into '/var/lib/mock/f37-build-side-32-misc-devel-195441-12785/root/chroot_tmpdir/scmroot/mozjs91'...
$ git reset --hard c5119fec9e4a8c1a5b4c69718bb1662d98ee03af
fatal: Could not parse object 'c5119fec9e4a8c1a5b4c69718bb1662d98ee03af'.