Says "Added '(', ')'" but they are also there in the source string

[scootergrisen]

For this translation Virtaal 0.7.1 check complains about added "(" and ")".
But "(" and ")" is also there in the source string so i don't think it should say that they have been added to the translation.

#, python-format
msgid ""
"\n"
"        Assigned to one project\n"
"        "
msgid_plural ""
"\n"
"        Assigned to %(num)s projects\n"
"        "
msgstr[0] "\n        Tildelt til ét projekt\n        "
msgstr[1] "\n        Tildelt til %(num)s projekter\n        "