$ git clone -n https://src.fedoraproject.org/rpms/dietlibc.git /var/lib/mock/f40-build-769872-125785/root/chroot_tmpdir/scmroot/dietlibc
Cloning into '/var/lib/mock/f40-build-769872-125785/root/chroot_tmpdir/scmroot/dietlibc'...
$ git reset --hard a202e428764d1868dbe4832101ac3eeb3d70bec8
HEAD is now at a202e42 Fix FTBFS