Bug#801308: umbrello: Can't save to file - "UMLDoc::saveDocument moving with error"

[Grégory DAVID <dev@groolot.net>]

Package: umbrello
Version: 4:15.08.1-1
Severity: grave
Justification: renders package unusable

Dear Maintainer,

   * What led up to the situation?
After starting the application umbrello, even if there's or not some content in the diagram, saving file shows up a dialog box saying: "There was a problem saving file: /path/to/the/file/to/be/saved

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
Starting umbrello in CLI to see log messages and see the error as:
   klauncher not running... launching kdeinit
   klauncher not running... launching kdeinit
   klauncher not running... launching kdeinit
   couldn't create slave: "Cannot talk to klauncher: The name org.kde.klauncher5 was not provided by any .service files"
   umbrello: UMLDoc::saveDocument moving with error =  "/tmp/umbrello.X20558"  to   QUrl( "file:///home/groolot/file.xmi" )

But fortunatly, the temporary file "/tmp/umbrello.X20558" exists and contain the appropriate content as created inside umbrello.
I then suspect a problem in the 'moving' action inside the program, from temporary file to saved file.

   * What was the outcome of this action?
Not saving the file.

   * What outcome did you expect instead?
The file to be saved in the right place.


-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.1.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages umbrello depends on:
ii  libc6                 2.19-22
ii  libkf5archive5        5.14.0-1
ii  libkf5completion5     5.14.0-1
ii  libkf5configcore5     5.14.0-1
ii  libkf5configgui5      5.14.0-1
ii  libkf5configwidgets5  5.14.0-1
ii  libkf5coreaddons5     5.14.0-1
ii  libkf5i18n5           5.14.0-1
ii  libkf5iconthemes5     5.14.0-1
ii  libkf5jobwidgets5     5.14.0-1
ii  libkf5kiocore5        5.14.0-1
ii  libkf5kiowidgets5     5.14.0-1
ii  libkf5texteditor5     5.14.0-1
ii  libkf5textwidgets5    5.14.0-1
ii  libkf5widgetsaddons5  5.14.0-1
ii  libkf5xmlgui5         5.14.0-1
ii  libqt5core5a          5.4.2+dfsg-9
ii  libqt5gui5            5.4.2+dfsg-9
ii  libqt5printsupport5   5.4.2+dfsg-9
ii  libqt5svg5            5.4.2-3
ii  libqt5widgets5        5.4.2+dfsg-9
ii  libqt5xml5            5.4.2+dfsg-9
ii  libstdc++6            5.2.1-17
ii  libxml2               2.9.2+zdfsg1-4
ii  libxslt1.1            1.1.28-2+b2

umbrello recommends no packages.

Versions of packages umbrello suggests:
ii  khelpcenter  4:5.4.1-1

-- no debconf information