Is the "undir_note" (the limitation on head/tail assignments in undirected graphs) still accurate/

Dev
3

Indeed. Here is my minimal test:

graph {
  edge [len=3.5 minlen=3]
  A -- B 
  B -- A [taillabel = "tail"]
}

And the results for multiple engines:

HeadsAndTails.montage
HeadsAndTails.montage425×966 6.86 KB

If you think it is a documentation bug: Issues · graphviz / graphviz.gitlab.io · GitLab
If you think it is a s/w bug: Issues · graphviz / graphviz · GitLab

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