Steps to reproduce:
1. Open attached project "SearchFieldCaretReset.zip"
2. Open "caretReset" scene
3. Open "NewBehaviourScript.cs" script
4. Edit the script (Adding a whitespace and saving is enough)
5. While the script is compiling try to enter text into search box or any other text field

Expected behaviour: caret continues with the input.
Actual behaviour: caret resets position resulting in a string that is different than what was typed.

Reproduced on: 5.2.4f1, 5.3.5f1, 5.3.6p2, 5.4.0f3, 5.5.0a5
Not reproduced on: 5.1.4f1