I don't have the full details but this just still sounds like a silly ego/turf war to me.
Like, if there's enough work to be done where this other person is able to shoehorn themselves in, but there's still work that has to be done that you need to do, then fine? Yes it's rude that they're doing it this way, and hopefully they've completed the work for the official job title that they have, before they come down and start doing your work? Otherwise you need to mention it to someone superior to you that this person is doing your work instead of the work they are officially responsible for.
I just think that people will know who is doing what and recognize you for your work that you are doing. If they don't? Well fuck em, you know you did the work and that is what is most important.
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I don't have the full details but this just still sounds like a silly ego/turf war to me.
Like, if there's enough work to be done where this other person is able to shoehorn themselves in, but there's still work that has to be done that you need to do, then fine? Yes it's rude that they're doing it this way, and hopefully they've completed the work for the official job title that they have, before they come down and start doing your work? Otherwise you need to mention it to someone superior to you that this person is doing your work instead of the work they are officially responsible for.
I just think that people will know who is doing what and recognize you for your work that you are doing. If they don't? Well fuck em, you know you did the work and that is what is most important.