Crashes on opening file from the recent files menu
#### Steps to reproduce:
- open Inkscape
- choose file from the recent files menu
#### What happened?
Crashes with the following error:
```
** (inkscape:14114): ERROR **: 10:19:21.923: Failed to register GObject with DBusConnection: org.freedesktop.DBus.Error.ObjectPathInUse A handler is already registered for /org/inkscape/desktop_0
Trace/breakpoint trap (core dumped)
```
#### Inkscape Version and Operating System:
- Inkscape Version: Inkscape 1.0alpha (1:0.92.0+devel+201903312037+3967330)
- Operating System: Pop!_OS (based on Ubuntu)
- Operating System version: 18.10
issue