Fixed StackOverflowError for Cyclic Dependency in Meta Data Source

[Limraj]

Description
In issue #3055, a validation has been added that makes it impossible to save a point with a cyclic dependency, but in the old configuration such a dependency could have been saved earlier and with such a dependency, a StackOverflowError error occurred when stopping and starting the point.

To Reproduce
Steps to reproduce the behavior:

Case 1:

1. Login as admin;
2. Import config from cyclic_conf.txt;
3. Enabled/Disabled point 'vds_1_vdp_1' then StackOverflowError in tomcat/logs/mango.log;

java.lang.StackOverflowError: null
	at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
	at org.apache.commons.logging.LogFactory.getContextClassLoaderInternal(LogFactory.java:808) ~[commons-logging-1.2.jar:1.2]
	at org.apache.commons.logging.LogFactory.getFactory(LogFactory.java:419) ~[commons-logging-1.2.jar:1.2]
	at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:655) ~[commons-logging-1.2.jar:1.2]
	at com.serotonin.mango.rt.event.type.DataSourceEventType.<init>(DataSourceEventType.java:41) ~[classes/:?]
	at com.serotonin.mango.rt.event.type.DataSourcePointEventType.<init>(DataSourcePointEventType.java:46) ~[classes/:?]
	at com.serotonin.mango.rt.dataSource.DataSourceRT.getDataSourceEventType(DataSourceRT.java:193) ~[classes/:?]
	at com.serotonin.mango.rt.dataSource.DataSourceRT._raiseEvent(DataSourceRT.java:174) ~[classes/:?]
	at com.serotonin.mango.rt.dataSource.DataSourceRT._raiseEvent(DataSourceRT.java:170) ~[classes/:?]
	at com.serotonin.mango.rt.dataSource.DataSourceRT.raiseEvent(DataSourceRT.java:203) ~[classes/:?]
	at com.serotonin.mango.rt.dataSource.meta.MetaDataSourceRT.raiseContextError(MetaDataSourceRT.java:129) ~[classes/:?]
	at com.serotonin.mango.rt.dataSource.meta.ScriptExecutor.convertContext(ScriptExecutor.java:95) ~[classes/:?]
	at com.serotonin.mango.rt.dataSource.meta.MetaPointLocatorRT.createContext(MetaPointLocatorRT.java:333) ~[classes/:?]
	at com.serotonin.mango.rt.dataSource.meta.MetaPointLocatorRT.pointTerminated(MetaPointLocatorRT.java:198) ~[classes/:?]

Case 2:

1. Login as admin;
2. Created OPC UA Data Source;
3. Find nodes;

Case 3:

1. Login as admin;
2. Created Virtual Data Source as virtual_1(Update: 1s, enabled) with point as 'virutal_1 - vdp_1' (Numeric, Increment, enabled);
3. Created three Meta Data Source as: meta_1, meta_2, meta_3 (all enabled) with points:

• 'meta_1 - mdp_1' -> data type: Numeric, Add context 'virtual_1 - vdp_1' as p1, Script: 'return p1.value', enabled;
• 'meta_2 - mdp_1' -> data type: Numeric, Add context 'meta_1 - mdp_1' as p1, Script: 'return p1.value', enabled;
• 'meta_3 - mdp_1' ->data type: Numeric, Add context 'meta_2 - mdp_1' as p1, Script: 'return p1.value', enabled;

4. Then there are no such errors in the logs::
   ERROR 2025-02-14T22:51:24,475 (com.serotonin.mango.rt.dataSource.meta.ScriptExecutor.convertContext:81) - Error DataPointRT null java.lang.Exception: key:206 value:p1 from:datapoint: meta_3 - mdp_1 (id: 208, xid: DP_193203, dataSourceId: 69, dataSourceXid: DS_328121, dataSourceName: meta_3)

Case 4:

1. Login as admin;
2. Created Virtual Data Source as virtual_1(Update: 1s, enabled) with point as 'virutal_1 - vdp_1' (Numeric, Increment, enabled);
3. Created three Meta Data Source as: meta_1, meta_2, meta_3 (all enabled) with points:

• 'meta_1 - mdp_1' -> data type: Numeric, Add context 'virtual_1 - vdp_1' as p1, Script: 'return p1.value', enabled;
• 'meta_2 - mdp_1' -> data type: Numeric, Add context 'meta_1 - mdp_1' as p1, Script: 'return p1.value', enabled;
• 'meta_3 - mdp_1' ->data type: Numeric, Add context 'meta_2 - mdp_1' as p1, Script: 'return p1.value', enabled;

4. Disabled 'virtual_1 - vdp_1' then all Meta Data Points with 'Point value may not be reliable';

Spec:

• Scada-LTS Version 2.8.0

Additional context
cyclic_conf.txt