$ git clone -n https://src.fedoraproject.org/rpms/gjs.git /var/lib/mock/f33-build-127653-40302/root/chroot_tmpdir/scmroot/gjs
Cloning into '/var/lib/mock/f33-build-127653-40302/root/chroot_tmpdir/scmroot/gjs'...
$ git reset --hard f8a9149d39f43bd40ef860e590f8deeeef7e372e
HEAD is now at f8a9149 Rebuild against mozjs68-68.6.0-2