Description of problem:
LibreOffice Impress doesn't allow me to modify a master as it crashes (fatal error)

Version-Release number of selected component (if applicable):
LibreOffice 5.3.5.2 30(Build:2)


How reproducible:
every time

Steps to Reproduce:
1. Open LibreOffice Impress
2. Open right panel, select "Masters" (might be different in english, I am using the french version so "Pages Maîtresses)
3. Right click on one of the masters and hit "edit master"

Actual results:
crash - fatal error, no other info in the popup. In the terminal, it shows:
[edouard@edouard]~% libreoffice --impress
X Error: BadMatch (invalid parameter attributes) 8
  Major opcode: 42 (X_SetInputFocus)
  Resource id:  0x640019f

Expected results:
I should be able to edit the master

Additional info:
Version: 5.3.5.2
Build ID: 5.3.5.2-2.fc26
Threads CPU : 4; OS : Linux 4.12; UI Render : par défaut; VCL : kde4; Layout Engine: new; 
Locale : fr-FR (fr_FR.UTF-8); Calc: group

Downgrading to Version: 5.3.4.1 doesn't solve the issue.