Bug#800775: dolphin: Dolphin doesn't start anymore in Stretch

[Mario Blättermann <mario.blaettermann@gmail.com>]

Package: dolphin
Version: 4:15.08.1-1
Severity: normal

Dear Maintainer,

I've changed the Dolphin configuration to let the preview side bar appear.
This didn't happen, instead Dolphin crashes again and again. Here's the dbg
output:

(gdb) run
Starting program: /usr/bin/dolphin 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe235a700 (LWP 14801)]
[New Thread 0x7fffdafbd700 (LWP 14802)]

Program received signal SIGSEGV, Segmentation fault.
0x00007fffead34960 in mdb_txn_begin ()
   from /usr/lib/x86_64-linux-gnu/liblmdb.so.0

With a newly created user, this doesn't happen, so I assume the config
files are damaged. Purging ~/.local/share/dolphin wasn't successful,
after each start (and crash) the folder is back again.

-- 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/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages dolphin depends on:
ii  libc6                  2.19-22
ii  libdolphinvcs5         4:15.08.1-1
ii  libkf5baloo5           5.14.0-1
ii  libkf5baloowidgets5    15.08.0-2
ii  libkf5bookmarks5       5.14.0-1
ii  libkf5codecs5          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  libkf5dbusaddons5      5.14.0-1
ii  libkf5filemetadata3    5.14.0-1
ii  libkf5i18n5            5.14.0-1
ii  libkf5iconthemes5      5.14.0-1
ii  libkf5itemviews5       5.14.0-1
ii  libkf5jobwidgets5      5.14.0-1
ii  libkf5kcmutils5        5.14.0-1
ii  libkf5kiocore5         5.14.0-1
ii  libkf5kiofilewidgets5  5.14.0-1
ii  libkf5kiowidgets5      5.14.0-1
ii  libkf5newstuff5        5.14.0-1
ii  libkf5notifications5   5.14.0-1
ii  libkf5parts5           5.14.0-1
ii  libkf5service5         5.14.3-1
ii  libkf5solid5           5.14.0-2
ii  libkf5textwidgets5     5.14.0-1
ii  libkf5widgetsaddons5   5.14.0-1
ii  libkf5windowsystem5    5.14.0-1
ii  libkf5xmlgui5          5.14.0-1
ii  libphonon4qt5-4        4:4.8.3-2
ii  libqt5core5a           5.4.2+dfsg-9
ii  libqt5dbus5            5.4.2+dfsg-9
ii  libqt5gui5             5.4.2+dfsg-9
ii  libqt5widgets5         5.4.2+dfsg-9
ii  libqt5xml5             5.4.2+dfsg-9
ii  libstdc++6             5.2.1-17
ii  phonon4qt5             4:4.8.3-2

Versions of packages dolphin recommends:
ii  ruby  1:2.1.5.1

Versions of packages dolphin suggests:
pn  dolphin-plugins  <none>

-- no debconf information