Update to AssemblyScript version 0.19.10.
This version breaks compatibility with subgraphs that use older versions of graph-cli, graph-ts and by consequence AssemblyScript.
To upgrade your subgraph follow this guide.
Main changes:
- Added set calls to all non-nullable fields of an Entity class (generated from codegen) to their default values in construction, so that if developers try to access them before setting, they already have a zero/empty value to work with.
- New assertions on operator overloading: graphprotocol/graph-ts#204
- Added matchstick testing framework #731
- Non Ethereum mainnet subgraphs can not be deployed to the Studio anymore