message: turn off variant that was causing clingo to favor a lower version instead of the suggestion of 3.0rc2
diff: @@ -185,6 +185,7 @@ packages:
  - spec: slurm@20
  prefix: /usr
  libyogrt:
  + buildable: false
  externals:
  - spec: libyogrt@1.24 scheduler=lsf
  prefix: /usr
  @@ -210,7 +211,9 @@ packages:
  variants: ~shared~examples~exercises
  scr:
  version: [3.0rc2]
  - variants: ~shared~examples~tests
  + # NOTE: Do not put ~shared here because spack's concretizer will favor
  + # version 2.0.0. For reasons.
  + variants: ~examples~tests
  umpire:
  variants: ~shared~examples
  