footnote continues emptily to next page

[M . Douglas . McIlroy]

A trouble with footnotes in text processed with groff -ms -e.

The footnote in the attached document is inappropriately continued
to the next page, where an apparently bare footnote separator
appears.

Tests done with groff 1.20.1.

[I suppose the continuation was caused by white space
generated by .EN--apparently a pernicious analog of the
relatively harmless ancient troff bug of sometimes emitting
a blank page after the end of a document.]

anomalousfootnote.ms
Description: Troff document