$ git clone -n https://src.fedoraproject.org/rpms/glibc.git /var/lib/mock/f40-build-730332-102681/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/f40-build-730332-102681/root/chroot_tmpdir/scmroot/glibc'...
$ git reset --hard 2538a798df476471298a30da96fb3045effe46cb
HEAD is now at 2538a79 Auto-sync with upstream branch master