Ive realized that one of my previous mentioned problems with the plugin is that I used a regex that looks liks this \d+\.\d+\.\d+. Im using that regex to make sure that the person starting the build enters a proper version number, ie. 1.2.3

Steps to reproduce

1. Create a new job with the following configuration
   1. Build is parameterized
   2. Add a string validation
      1. Name = VALUE
      2. Regex = \d+\.\d+\.\d+
      3. Error = Enter a three digit version number
   3. Save the configuration
2. Start a new build
3. Enter 1.2.3 into the VALUE text box
4. Move away focus from text box

Expected outcome:

The Enter a three digit version number text disappears and no error is shown

Actual outcome:

The Enter a three digit version number text is shown as an error

If I use a .+ regex, then the error message disappears when I enter something into the textbox.