$ git clone -n https://src.fedoraproject.org/rpms/glibc.git /var/lib/mock/f40-build-799801-142603/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/f40-build-799801-142603/root/chroot_tmpdir/scmroot/glibc'...
$ git reset --hard 68abc16af72f1726f3fad3369bab8b812b306bbc
HEAD is now at 68abc16 Sync with upstream branch release/2.39/master