$ git clone -n https://src.fedoraproject.org/rpms/glibc.git /var/lib/mock/f40-build-767005-124578/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/f40-build-767005-124578/root/chroot_tmpdir/scmroot/glibc'...
$ git reset --hard ca9e6ac79501d9ee8eeaf795c5764d8733534910
HEAD is now at ca9e6ac Auto-sync with upstream branch master