[GRASS5] grass57 d.what.vect - dies silently after two clicks

Hello,

d.what.vect does not give any results and dies silently after the second
click on the map.

When launched via the display manager, the following error message appears:

child killed: write on pipe with no readers
child killed: write on pipe with no readers
    while executing
"exec d.what.vect map=communes >@stdout 2>@stdout"
    ("eval" body line 1)
    invoked from within
"eval "exec $cmd >@stdout 2>@stdout""
    (procedure "Dm::execute" line 12)
    invoked from within
"Dm::execute $cmd"
    (procedure "DmVector::query" line 24)
    invoked from within
"DmVector::query $sel"
    ("vector" arm line 2)
    invoked from within
"switch $type {
        raster {
            DmRaster::query $sel
        }
        labels {
            DmLabels::query $sel
        }
        vector ..."
    (procedure "Dm::query" line 10)
    invoked from within
"Dm::query"
    ("uplevel" body line 1)
    invoked from within
"uplevel \#0 $cmd"
    (procedure "Button::_release" line 18)
    invoked from within
"Button::_release .mainframe.topf.tb0.bbox1.b4"
    (command bound to event)

Moritz