Difference in msgid_plural and msgstr[1] appears as unchanged string

[scootergrisen]

I have the following in a po file but Virtaal shows it as unchanged string under quality check.
Perhaps Virtaal only compares msgid and msgstr[0] which are unchanged.
But msgid_plural and msgstr[1] are different.

msgid "%{text} %{files}"
msgid_plural "%{text} %{files} files"
msgstr[0] "%{text} %{files}"
msgstr[1] "%{text} %{files} filer"

I think Virtaal should not show this as unchanged.

Virtaal 0.7.1
Windows 7