Axios 1.2.3 breaks clients generated by orval

[soulchild]

What are the steps to reproduce this issue?

1. Upgrade axios from 1.2.2 to 1.2.3

What happens?

Axios 1.2.3 introduced changes to its types which break clients generated by Orval:

error TS2345: Argument of type '{ headers?: AxiosRequestHeaders | undefined; url?: string | undefined; method?: string | undefined; baseURL?: string | undefined; transformRequest?: AxiosRequestTransformer | AxiosRequestTransformer[] | undefined; ... 31 more ...; formSerializer?: FormSerializerOptions | undefined; }' is not assignable to parameter of type 'AxiosRequestConfig<any>'.
Types of property 'headers' are incompatible.
  Type 'AxiosRequestHeaders | undefined' is not assignable to type 'AxiosRequestHeaders'.
    Type 'undefined' is not assignable to type 'AxiosRequestHeaders'.
      Type 'undefined' is not assignable to type 'Partial<RawAxiosHeaders & MethodsHeaders & CommonHeaders>'.

What were you expecting to happen?

Axios patch-level upgrades shouldn't break existing code. ;-)

openapi-generator, zodios and a couple of other libraries are broken as well. There's an ongoing discussion over at axios/axios#5420

[soulchild]

Seems like there is already a PR underway which is supposed to fix this: axios/axios#5486

[melloware]

This is already fixed in Axios and can be closed.