Geolocation Editor: remove altitude context menu not working as expected

[Maik Qualmann]

This commit will fix the problem in digiKam-5.8.0.

https://commits.kde.org/digikam/6b37d7b72d6213c82132f970ce589d9303906d5e

Maik

Am Sonntag, 3. Dezember 2017, 20:47:13 CET schrieb Maik Qualmann:
> I can reproduce it now, I'll take a look at it.
> 
> Maik
> 
> Am Sonntag, 3. Dezember 2017, 19:23:49 CET schrieb 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
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