org-remove-highlights-with-change

org-remove-highlights-with-change is a variable defined in `org.el'.
Its value is

t

Documentation:
Non-nil means any change to the buffer will remove temporary highlights.
Such highlights are created by `org-occur' and `org-clock-display'.
When nil, `C-c C-c needs to be used to get rid of the highlights.
The highlights created by `org-preview-latex-fragment' always need
`C-c C-c' to be removed.

You can customize this variable.