AddressSanitizer: container-overflow (possible) in mapnik::json::from_geojson

[springmeyer]

This may be spurious, but until we make that call recording this as a possible bug.

The issue is that building mapnik and mapnik-vector-tile with -fsanitize=address results in https://gist.github.com/springmeyer/373f241d2fae49a23133#file-gistfile1-txt when running the mapnik-vector-tile tests like make test BUILDTYPE=Debug

$ /opt/llvm/bin/clang++ -v
clang version 3.7.0 (http://llvm.org/git/clang.git de723f5818e668f45fae30510c403eb7e4f09568) (http://llvm.org/git/llvm.git 89d0e99f863f906d64727f168686565248063a9a)
Target: x86_64-apple-darwin14.3.0
Thread model: posix

Mapnik built like: https://gist.github.com/springmeyer/b484f2e9f41faaad4247

[artemp]

Closing for now