No, the align settings determines the box type. The \strut at the begin forces horizontal mode which results in both \hbox’es in the same line.16. Mai 2016 um 16:31Thanks.
I redid the examples with the autostrut parameter set to respectively yes and no. In the former case I see all have an hbox and in the latter case all have a vbox. So it seems not the align, but the strut being the one determining the box variant.