unrecognized variables when using output file to initialize variables

[DanielYankura]

Bug Description

I am currently working with the k-epsilon turbulence model. I have a solution for a case where the turbulence was very relaxed, but I wanted to use the output from that case as the new initial conditions for a case where turbulence is less relaxed. vel_x copied over just fine however, I get errors for every other variable saying "Unrecognized variable __ in variables to copy". If I initialize vel_y, vel_z, and pressure instead of copying them, it will then give me the same error for my TKE and TKED variables.

Steps to Reproduce

I ran test_pipe.i, renamed the output file to test_pipe_input.e, and in the mesh block in test_pipe_read_in.i I set file = test_pipe_input.e When I then run test_pipe_read_in.i I get the error mentioned above. test pipe files.zip

Impact

I will likely need this feature to work in order for me to do tests with less turbulence relaxation.

[GiudGiud]

This is a problem coming from multi-system + exodus restart from my limited investigation