Show all objects in custom field when issue filter yields no result

[Kevin Gérard]

I use the insight to map organizations and users over multiple projects. 

I Load the 'organizations' object in a custom field on the ticket creation screen. 

i filter the list of organizations based on the inboundreferences of the users object. 

i get the user value from the reporter field, this works pretty well.

However, when the filter yields NO result, i need ALL organizations to load. 

how can i achieve this?