Same Key issue

[AsbjoernJC]

Steps to reproduce:

1. Upload LogTimeseriesSpeedAcc.txt
2. Go to advanced search
3. Type Speed=\d
4. Search (enter)
5. Scroll down until a new page is rendered
6. Speed=\d2
7. Search (enter)
8. Scroll down until a new page is rendered

Switching to other searches causes issues.

Causes table to go haywire