Try {hash:7} instead of {hash}

Author: harshula

spack.yaml

@@ -47,8 +47,6 @@ spack:
         tcl: $spack/../release/modules
         lmod: $spack/../release/lmod
       tcl:
-        # Remove hash_length once spack-config's modules.yaml is updated.
-        # hash_length: 0
         include:
           # The model components are required below:
           - access-om2
@@ -65,5 +63,5 @@ spack:
             set:
               'SPACK_{name}_ROOT': '{prefix}'
         projections:
-          all: '{name}/{version}-{hash}'
+          all: '{name}/{version}-{hash:7}'
           access-om2: '{name}/2024.08.0'