Bug#1063510: verbose why produces duplicates

[Mikko Viinamäki]

Package: aptitude
Version: 0.8.13-3

E.g. running "aptitude --verbose why libjavascriptcoregtk-4.0-18" outputs

i   libproxy1-plugin-webkit Depends libjavascriptcoregtk-4.0-18

i   gnome-maps                   Depends gir1.2-webkit2-4.0
i A gir1.2-webkit2-4.0           Depends gir1.2-javascriptcoregtk-4.0 (= 
2.42.5-1~deb11u1)
i A gir1.2-javascriptcoregtk-4.0 Depends libjavascriptcoregtk-4.0-18 (= 
2.42.5-1~deb11u1)

i   gnome-maps                   Depends gir1.2-webkit2-4.0
i A gir1.2-webkit2-4.0           Depends gir1.2-javascriptcoregtk-4.0 (= 
2.42.5-1~deb11u1)
i A gir1.2-javascriptcoregtk-4.0 Depends libjavascriptcoregtk-4.0-18 (= 
2.42.5-1~deb11u1)

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