mdmwebkit, mdmgreeter, mdmlogin still running even if mdmsetup already closed

[siusman]

1)Software version :
Linuxmint KDE 17.1 32bit
mdm 1.8.3+rebecca
mint-mdm-themes-gdm 1.8.1
mint-mdm-themes-html 1.8.3
mint-mdm-themes-kde 2014.10.29
kcm-mdm 1.0.2

2)How to reproduce :
- open 'mdm login manager' / mdmsetup
- open theme tab, click preview button
- close mdmsetup

3)What happened :
- mdmwebkit/mdmgreeter/mdmlogin still running even if mdmsetup and/or preview windows already closed
- if we click preview button 10 times (for example because of trying 10 different themes), then 10 processes (mdmwebkit/mdmgreeter/mdmlogin) will run simultaneously

4)What you expected to happen instead :
- mdmwebkit/mdmgreeter/mdmlogin should be closed if we close preview window

5)The problem always happen

Additional info :
- Linux 3.13.0-46-generic
- KDE 4.14.2
- AMD Radeon 6290, fglrx-updates driver
- Problem also happen in other machine with Nvidia card

[Peter Passchier (peter-passchier)]

LMDE2 also affected. A number of mdmwebkit processes are still running (no mdmgreeter/mdmlogin...)