Pipelines failing when only links are included?

The following discussion from !1225 (merged) should be addressed:

• @jshahini started a discussion: (+1 comment)

  Hi @cgutscho

  Indeed it is a duplicate, but this is by design in order to clear the CI. To give some context, these JOs are for a SUSY grid expansion.

  I originally tried to upload everything using only symlinks to that control file, but the CI pipelines were failing, claiming that the jobs couldn't find MadGraphControl_SimplifiedModel_GG_directRPVLQD.py

  So I duplicated the control file you pointed to and included it in this MR so that the pipelines would succeed. After the MR gets accepted, I was going to make another one where I change all the control files to be symlinks to /502xxx/502416/MadGraphControl_SimplifiedModel_GG_directRPVLQD.py. That way, there would be no duplicated control files floating around.

  I realize this is remarkably convoluted, so I'm more than happy to hear other ideas about preparing the JOs for grid expansions in R21.

  Cheers, Jeff

Failed pipeline: https://gitlab.cern.ch/atlas-physics/pmg/mcjoboptions/-/pipelines/2741834