GPS Altitude is not aware of globalization

[lordofscripts]

Version (please complete the following information):

• OS: Linux Debian 12
• Version Debian 12
• Package DEB

Describe the bug
I entered the geolocation information in the Edit data | GPS tab but when I click on Save to selected image (whether it is one of several selected images), nothing happens.
I double check with an external script that dumps EXIF data and location and it has NOT been written.
I am editing the Lat/Long/Altitude and XMP/IPTC Location data.

To Reproduce
Steps to reproduce the behavior:

1. Launch application & Load folder
2. Click on any photo from left pane
3. Right pane select Exif Data
4. Select GPS tab
5. Enter Latitude/Longitude/Altitude
6. Enter Location, Country, State, City
7. With the image selected click on Save to selected image(s) button

Extra Info

My locale is set to Eng_US and I noticed you are Dutch. It appears to me your program isn't fully aware of locales. Here is why...

When I PASTE the altitude info from the Map coordinates.net site into the altitude field, the application automatically formats the altitude with a COMMA as thousands separator, while in my locale it is a PERIOD. I noticed it gave an exception when it tries to parse that value.

But once it is with the correct separator, it writes the info but complains with:

Warning: error converting value for User data:Gps coordinates (OrintConvInt)

But it writes the wrong altitude anyway.The field in the app should use a decimal format as per the current locale, not European number format.