Meeting duration turns to 0

[samus-aran]

Issue

Intermittently the Outlook plugin will touch a Outlook Meeting object and set the duration_hours and/or duration_mins to 0.
This appears to only happen when synchronising both from Outlook & SuiteCRM

Expected Behavior

Meetings should only be updated triggered by a change

Actual Behavior

Some meetings are updated without user interaction with duration_hours or/and duration_mins set to 0

Possible Fix

Areas of interest are:
Exception:

SuiteCRM-Outlook-Plugin/SuiteCRMAddIn/Exceptions/DurationSetToZeroException.cs

Line 13 in 000d937

internal class DurationSetToZeroException : Exception

When Zero is detected:

SuiteCRM-Outlook-Plugin/SuiteCRMAddIn/BusinessLogic/AppointmentSyncState.cs

Line 123 in 000d937

catch (DurationSetToZeroException dz)

Changing the Meeting Duration functionality:

SuiteCRM-Outlook-Plugin/SuiteCRMAddIn/BusinessLogic/MeetingsSynchroniser.cs

Line 76 in 7dbfe0b

protected override void SetOutlookItemDuration(EntryValue crmItem, Outlook.AppointmentItem olItem)

Steps to Reproduce

1. Set Synchronisation "Meetings" to "Both"
2. Create a new Meeting with time of the start/end more than 0
3. Watch it being synchronised up to SuiteCRM
4. Leave it and potentially see that the Meeting on Outlook is 0

Context

Logs

Your Environment

• Outlook Plugin Version used: 3.0.22 (and less)
• Outlook Client Version used: Outlook 2016
• SuiteCRM Version used: SuiteCRM 7.10.x
• Host (e.g. PC, Server):
• Operating System and version (e.g Windows 10):