$ git clone -n https://src.fedoraproject.org/rpms/libproxy.git /var/lib/mock/f37-build-638640-70909/root/chroot_tmpdir/scmroot/libproxy
Cloning into '/var/lib/mock/f37-build-638640-70909/root/chroot_tmpdir/scmroot/libproxy'...
$ git reset --hard e858c055dfeb4a52944a3a7eef359a74bd633dc7
HEAD is now at e858c05 Replace WebKitGTK pacrunner backend with duktape