Zabbix

A......... [ZBX-23284] prevented deletion of the discovered group as a result of renaming its group prototype

* commit '4652be78825aa9d1174c3d0b3a42bfe4b3c8c13c':
  A......... [ZBX-23284] simplified code; improved error message
  A......... [ZBX-23284] fixed inability to import an lld rule with host prototype containing a host group which is not presented in the import file
  A......... [ZBX-23284] fixed code style; fixed typo in error message
  A......... [ZBX-23284] prevented deletion of the discovered group as a result of renaming its group prototype