Having the same endpoint name on multiple slices of injectEndpoints

[samislam]

I have the following code:
userSlice.js file

const userSlice = mainApi.injectEndpoints({
   endpoints: (builder) => ({
      createOne: builder.mutation({
      query: () => ({
         url: '/users'
         method: 'POST',
         credentials: 'include',
         body: payload,
      })
      })
   })
})

export const { useCreateOneMutation } = userSlice

roomSlice.js file

const roomSlice = mainApi.injectEndpoints({
   endpoints: (builder) => ({
      createOne: builder.mutation({
      query: () => ({
         url: '/rooms'
         method: 'POST',
         credentials: 'include',
         body: payload,
      })
      })
   })
})

export const { useCreateOneMutation } = roomSlice

I want to be able to use the name createOne in the both slices [roomSlice, userSlice],
However, I can't... because if I used createOne() of the roomSlice in one of my components, it would think that it's the one belonging to userSlice, (even though I am importing the useCreateOneMutation from the right file) so what I have done is to use the property overrideExisting: true as follows:

userSlice.js file

const userSlice = mainApi.injectEndpoints({
   endpoints: (builder) => ({
       // ...
   }),
   overrideExisting: true
})

roomSlice.js file

const roomSlice = mainApi.injectEndpoints({
   endpoints: (builder) => ({
       // ...
   }),
   overrideExisting: true
})

But it still does not work as expected, what am I doing wrong?

btw I'm not getting any warning as described in the docs