$ git clone -n https://src.fedoraproject.org/rpms/json-c.git /var/lib/mock/f31-build-112717-34301/root/chroot_tmpdir/scmroot/json-c
Cloning into '/var/lib/mock/f31-build-112717-34301/root/chroot_tmpdir/scmroot/json-c'...
$ git reset --hard acca1a4dd12610083f745741a3f08ffe18d1cfc2
HEAD is now at acca1a4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild