Number field doesn't accept decimal point when using different language settings

Summary

If the profile language is set to another language besides English, the number field is not accepting the decimal point

Steps to Reproduce

1. Create a number custom field, i.e Number of Days
2. Add any number with decimal point in the field, i.e 5.5
3. Set the profile language as Dansk (Danmark)
4. In the issue search, search for the issue with the custom field with value that you've just entered, i.e Project = ABC and Number of Days = 5.5

Expected Results

Number field should accept decimal point in all languages

Actual Results

An error stating that the value number is not a valid number

Workaround

Switch the language settings to English in your Personal Settings.