$ git clone -n https://github.com/xcp-ng-rpms/jemalloc.git /var/lib/mock/v8.3-u-ydi2-7859-22546/root/chroot_tmpdir/scmroot/jemalloc
Cloning into '/var/lib/mock/v8.3-u-ydi2-7859-22546/root/chroot_tmpdir/scmroot/jemalloc'...
$ git reset --hard 1b33ba270da85b3b61e6e024073996e4e36758d3
fatal: Could not parse object '1b33ba270da85b3b61e6e024073996e4e36758d3'.