Except as otherwise provided in this section, if a postprobationary employee of a school district or charter school in this state:
1. Voluntarily leaves his or her employment; and
2. Is, within 5 years after the date on which the employee left that employment, employed by any school district or charter school in this state in a position that is comparable to the position in which the employee attained postprobationary status,
Ê he or she must be allowed to continue as a postprobationary employee and must not be required to serve the probationary period required by subsection 1 of NRS 391.820. This section does not apply to a postprobationary employee who voluntarily leaves his or her employment during the pendency of a proceeding for the suspension, demotion, dismissal or refusal to reemploy the postprobationary employee.