MSG_TO_L1.to_address should be an ETH_ADDRESS

[ArielTM]

MSG_TO_L1.to_address is defined as FELT

starknet-specs/api/starknet_api_openrpc.json

Line 2934 in e5ce8c6

"$ref": "#/components/schemas/FELT"

Which is being checked against the following regex:

starknet-specs/api/starknet_api_openrpc.json

Line 1303 in e5ce8c6

"pattern": "^0x(0|[a-fA-F1-9]{1}[a-fA-F0-9]{0,62})$"

But "to_address" is essentially an Eth address which normally contain a leading zeroes when needed.

For example, the receipt of "0x06b7f4ac059de44c9c9d9fc6ddbabe35424e3fe35b97403de41f39a63667ff9b" tx contain a message to an address with a leading zero:
https://starkscan.co/tx/0x06b7f4ac059de44c9c9d9fc6ddbabe35424e3fe35b97403de41f39a63667ff9b#messagelogs

Getting the receipt of this tx might cause an error when validating against the regex as mentioned here:
software-mansion/starknet.py#1423