The search of the field "Space" in the form Create/Edit File Server of type Confluence doesn't work correctly

The search of the field "Space" in the form Create/Edit File Server of type Confluence doesn't work correctly.

If you have a space called "e-Pers" and go to find that space in the form Create/Edit File server the search doesn't return the space.

Steps to reproduce:

1. Create a space called e-Pers in your Confluence
2. Now try to create a file server of type confluence and in the field space try to write the following words:
   • "e-Pers": doesn't appear the space
   • "e-": doesn't appear the space
   • "Pers": doesn't appear the space
   • "Pe": appears the space

Actual Result: If you write "e-Pers" or "e-" or "Pers", space doesn't appear, but "Pe" or "e" appears

Expected Result: If you write "e-Pers" or "e-" or "Pers" or "Pe", space should always appear.