Steps to reproduce:
1 . Go to Jenkins Build Configuration
2. Click to add Images to build with "Create Image Gallery"
3. Add Gallery Title and Pattern
4. Now add "Image Width" let say 150
5 Click Save or Apply
6. Now run a build

Expected: User should be able to see screenshots with width 150
Actual: Screenshots successfully displayed with width 150 but every subsequent build will not have 150 width. In other words, It needs to saved every time before the next build