simple balance report's tree layout is disrupted by --layout=bare

[simonmichael]

This bug seems to have existed since --layout was added in hledger 1.24. Notice how the last of these reports does not have the proper indentation showing account hierarchy:

2025-10-01
  a
  a:aa         1

$ hledger -f a.journal bal -tNY
Balance changes in 2025:

      || 2025 
======++======
 a    ||    0 
   aa ||    1 

$ hledger -f a.journal bal -tNY --layout bare
Balance changes in 2025:

      || Commodity  2025 
======++=================
 a    ||               0 
   aa ||               1 

$ hledger -f a.journal bal -tN
                   0  a
                   1    aa

$ hledger -f a.journal bal -tN --layout bare
 0    a  
 1    aa 

However, in larger balance reports I do seem to see indentation. So this repro isn't quite pinned down yet.