I have the Dutch locale, which means that decimal numbers are written as: 1.234,56. That is, the comma is used to indicate the decimals instead of the English point.
When I enter a calculation in krunner I have to enter it as follows:
=12.50+25.06
Then answer I get is
37,56
As you can see, the answer is written in the correct way for the current locale, but the input has to be written in the 'wrong' form.
Also, when I press <Enter>, the answer is copied back into the input field with the comma, so the input field then reads "= 37,56". The output the Calculator plugin then shows as [37; 56].


Reproducible: Always

Steps to Reproduce:
1. Use the Dutch locale (or any locale using commas to separate the decimal part)
2. In krunner, enter "=12.50+25.06" (without quotes)
3. The answer is then "37,56" (without quotes)
4. Press <Enter>
5. The input field will read "= 37,56" (without quotes)

Actual Results:  
The output field will read "[37; 56]" (without quotes)

Expected Results:  
I would expect "37,56" again. Also the input should not use the point, but a comma. I.e. I should be able to enter the calculations as "=12,50+25,06".