Geolocation Editor: remove altitude context menu not working as expected

[NeiNei]

Dear Maik,

I use JPEG images.

Thanks for getting into this.
NeiNei

On 12/03/2017 06:07 PM, Maik Qualmann wrote:
> I can not reproduce the problem, the altitude is definitely gone and does not
> appear anymore. What kind of images do you use, RAW or JPEG?
> 
> Maik
> 
> Am Sonntag, 3. Dezember 2017, 17:54:58 CET schrieb NeiNei:
>> Hi there,
>>
>> I just checked the most recent appimage
>> "digikam-5.8.0-20171202T042941-x86-64.appimage". Unfortunately, the
>> issue remains.
>>
>> Could someone give me a hint on this or could reproduce this behavior?
>>
>> Thanks in advance,
>> NeiNei
>>
>> On 12/01/2017 12:22 PM, NeiNei wrote:
>>> Hi there,
>>>
>>> Perhaps I have a conceptual misunderstanding but I face an issue in the
>>> geolocation editor when I try to remove altitude values in the metadata
>>> of my jpeg photos.
>>>
>>> *Situation:
>>> I select an image in thumbnail view and open then the geolocation editor.
>>> In the geolocation editor I select the Details tab.
>>> In the details tab I select an image containing gps coordinates and
>>> altitude data. Coordinates and altitude data are correctly shown
>>> For the selected picture I right-click the context menu and choose
>>> “remove altitude”.
>>> The altitude value is removed and the altitude filed is now empty.
>>> I press apply and close the geolocation editor.
>>>
>>> I reopen the geolocation editor.
>>> In the details tab I select the same image. In the details tab I see the
>>> gps coordinates and an altitude value of 0 (zero) meters.
>>>
>>>
>>> *Expectation:
>>> I would expect an empty field instead of 0 meters. The latter represents
>>> sea level for me.
>>>
>>>
>>> *My interpretation:
>>> “Remove altitude” does not empty the metadata field altitude as intended
>>> but writes 0 meters in it.
>>>
>>> *Further observations:
>>> The issue remains whether I reread the metadata of the jpeg or not.
>>> It doe not matter if I select on or several jpeg images and remove
>>> altitude on them.
>>> If I use “Remove coordinates” instead gps coordinates and the altitude
>>> values is removed and the fields stay empty on reopening the same image
>>> in the geolocation editor.
>>> I observed the issue in DK 5.7 (KDE Neon) and in Win64 DK 5.8 built of
>>> November 30th as well in DK 5.8 app image for Linux from last week.
>>>
>>> So, could someone give me a hint on this or could reproduce this behavior?
>>>
>>> Thanks in advance,
>>> NeiNei