RPC eth_syncing end-point is not returning expected values

[joanestebanr]

System information

zkEVM Node version: v0.5.0

Expected behaviour

If the node is still syncing (reading from L1) must return a structure.
If the node is fully synchronized with L1 must return false

https://ethereum.org/en/developers/docs/apis/json-rpc#eth_syncing

Actual behaviour

Meanwhile synchronizer is still processing L1 blocks

 curl -H "Content-Type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":83}' http://localhost:8123
{"jsonrpc":"2.0","id":83,"result":false}

Steps to reproduce the behaviour

Resyncrhonize