Zabbix

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

* commit 'dadb08f5799afd8df08803411c7e991a76396f25':
  A......... [ZBX-23284] simplified code; improved error message
  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