Problem on flag (segnalation) post

[athedoor]

Hi all,
I can't flag a post two o more times after the first resolution.
After I have solved a segnalation (eg. flagged post for abuse) the user do not see again the option "flag this post".
Only a time it was permit (two segnalations) but i don't understand if it was a particular scenario (if i have performed some action that i don't remember) or it is a nodeBB bug.
I manage the post flagged setting its status to solved after my moderation. What do I do to permit another segnaltion on the same post?
Could yuo help me? Thanks