ovirt-engine-backend: GUI Stuck when attempting to attach multiple virtual disks to VM. 

scenario:
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1) Create VM .
2) Create multiple virtual disks.
3) Attempt to attach more than 1 virtual disk to the VM. 

Results:
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1) GUI/Browser immediately Stuck when selecting multiple disks and attempting to attach to the VM. 
2) After restart of the browser and logged in to rhevm , the GUI got stuck each time attempted to view : the 'specific VM --> Virtual Disk (sub-tab)'.


engine.log:  - (GUI stuck first time when attaching multiple HD's)
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2012-05-07 16:00:00,001 INFO  [org.ovirt.engine.core.bll.AutoRecoveryManager] (QuartzScheduler_Worker-20) Checking autorecoverable hosts
2012-05-07 16:00:00,006 INFO  [org.ovirt.engine.core.bll.AutoRecoveryManager] (QuartzScheduler_Worker-20) Checking autorecoverable hosts done
2012-05-07 16:00:00,007 INFO  [org.ovirt.engine.core.bll.AutoRecoveryManager] (QuartzScheduler_Worker-20) Checking autorecoverable storage domains
2012-05-07 16:00:00,009 INFO  [org.ovirt.engine.core.bll.AutoRecoveryManager] (QuartzScheduler_Worker-20) Checking autorecoverable storage domains done
2012-05-07 16:00:08,617 WARN  [org.ovirt.engine.core.bll.GetConfigurationValueQuery] (ajp--0.0.0.0-8009-2) calling GetConfigurationValueQuery (MaxDiskSize) with null version, using default general for version
2012-05-07 16:00:08,841 WARN  [org.ovirt.engine.core.bll.GetConfigurationValueQuery] (ajp--0.0.0.0-8009-6) calling GetConfigurationValueQuery (SANWipeAfterDelete) with null version, using default general for version
2012-05-07 16:00:14,480 INFO  [org.ovirt.engine.core.bll.MultipleActionsRunner] (pool-10-thread-50) Start time: 5/7/12 4:00 PM. Start running CanDoAction for command number 1/2 (Command type: AttachDiskToVm)
2012-05-07 16:00:14,483 INFO  [org.ovirt.engine.core.bll.MultipleActionsRunner] (pool-10-thread-49) Start time: 5/7/12 4:00 PM. Start running CanDoAction for command number 2/2 (Command type: AttachDiskToVm)
2012-05-07 16:00:14,601 INFO  [org.ovirt.engine.core.bll.MultipleActionsRunner] (pool-10-thread-49) End time: 5/7/12 4:00 PM. Finish handling CanDoAction for command number 2/2 (Command type: AttachDiskToVm)
2012-05-07 16:00:14,612 INFO  [org.ovirt.engine.core.bll.MultipleActionsRunner] (pool-10-thread-50) End time: 5/7/12 4:00 PM. Finish handling CanDoAction for command number 1/2 (Command type: AttachDiskToVm)
2012-05-07 16:00:14,614 INFO  [org.ovirt.engine.core.bll.AttachDiskToVmCommand] (pool-10-thread-50) [75b05a53] Running command: AttachDiskToVmCommand internal: false. Entities affected :  ID: 3acf3ef8-6454-4f07-89bd-65a67f36b860 Type: VM,  ID: d52e377c-d1ee-477d-a41e-a690792590e5 Type: Disk
2012-05-07 16:00:14,700 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (pool-10-thread-50) [75b05a53] No string for UNASSIGNED type. Use default Log
2012-05-07 16:00:14,717 INFO  [org.ovirt.engine.core.bll.AttachDiskToVmCommand] (pool-10-thread-50) [531ee090] Running command: AttachDiskToVmCommand internal: false. Entities affected :  ID: 3acf3ef8-6454-4f07-89bd-65a67f36b860 Type: VM,  ID: 69dbac14-5b6b-4c01-973f-eeab052c6ec0 Type: Disk
2012-05-07 16:00:14,759 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (pool-10-thread-50) [531ee090] No string for UNASSIGNED type. Use default Log


engine.log: ( GUI Stuck when attempting to [query] view virtual-disk sub tab)
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2012-05-07 15:57:36,189 WARN  [org.ovirt.engine.core.dal.dbbroker.generic.DBConfigUtils] (http--0.0.0.0-8080-6) Adding new value to configuration cache.
2012-05-07 15:57:36,204 WARN  [org.ovirt.engine.core.dal.dbbroker.generic.DBConfigUtils] (http--0.0.0.0-8080-6) Didnt find the value of DBI18NPrefix in DB for version general - using default: