Checkmk Werk 15608: Show explanation message instead of KeyError: 'extensions'

ID: 15608 Title: Show explanation message instead of KeyError: 'extensions' Component: Dynamic host configuration Level: 1 Class: Bug fix Version: 2.3.0b1 Previously, if a folder is moved or deleted, which is in use by a DCD connection, the following error was shown. C+: 09:37:31 ERROR An exception occured Traceback (most recent call last): File "/omd/sites/heute/lib/python3/cmk/cee/dcd/connectors/piggyback.py", line 260, in _execute_phase2 created_host_names = self._create_new_hosts(hosts_to_create) File "/omd/sites/heute/lib/python3/cmk/cee/dcd/connectors/piggyback.py", line 479, in _create_new_hosts created_host_names = self._create_piggyback_hosts(hosts_to_create) File "/omd/sites/heute/lib/python3/cmk/cee/dcd/connectors/piggyback.py", line 504, in _create_piggyback_hosts assert_never(result) File "/omd/sites/heute/lib/python3.11/typing.py", line 2462, in assert_never raise AssertionError(f"Expected code to be unreachable, but got: {value}") AssertionError: Expected code to be unreachable, but got: None C-: With this Werk, a debugging message will be shown instead.