Requested time range is out of permitted bounds when free / busy information is retrieved

[advancingu]

Actual:

• Shared team calendar fails to show any events with latest code from ec-4.0 branch.
• Request sent to server to obtain free / busy information looks as follows:

<?xml version="1.0" encoding="utf-8"?>
<nsSoap:Envelope xmlns:nsMessages="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:nsSoap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:nsTypes="http://schemas.microsoft.com/exchange/services/2006/types">
    <nsSoap:Header>
        <nsTypes:RequestServerVersion Version="Exchange2013"/>
        <nsTypes:TimeZoneContext>
            <nsTypes:TimeZoneDefinition Id="W. Europe Standard Time" Name="(UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna"/>
        </nsTypes:TimeZoneContext>
    </nsSoap:Header>
    <nsSoap:Body>
        <nsMessages:GetUserAvailabilityRequest xmlns:nsMessages="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:nsTypes="http://schemas.microsoft.com/exchange/services/2006/types">
            <nsTypes:TimeZone>
                <nsTypes:Bias>0</nsTypes:Bias>
                <nsTypes:StandardTime>
                    <nsTypes:Bias>0</nsTypes:Bias>
                    <nsTypes:Time>00:00:00</nsTypes:Time>
                    <nsTypes:DayOrder>1</nsTypes:DayOrder>
                    <nsTypes:Month>0</nsTypes:Month>
                    <nsTypes:DayOfWeek>Sunday</nsTypes:DayOfWeek>
                </nsTypes:StandardTime>
                <nsTypes:DaylightTime>
                    <nsTypes:Bias>0</nsTypes:Bias>
                    <nsTypes:Time>00:00:00</nsTypes:Time>
                    <nsTypes:DayOrder>1</nsTypes:DayOrder>
                    <nsTypes:Month>0</nsTypes:Month>
                    <nsTypes:DayOfWeek>Sunday</nsTypes:DayOfWeek>
                </nsTypes:DaylightTime>
            </nsTypes:TimeZone>
            <nsMessages:MailboxDataArray>
                <nsTypes:MailboxData>
                    <nsTypes:Email>
                        <nsTypes:Address>team@company.com</nsTypes:Address>
                    </nsTypes:Email>
                    <nsTypes:AttendeeType>Required</nsTypes:AttendeeType>
                </nsTypes:MailboxData>
            </nsMessages:MailboxDataArray>
            <nsTypes:FreeBusyViewOptions>
                <nsTypes:TimeWindow>
                    <nsTypes:StartTime>2017-10-25T20:21:54Z</nsTypes:StartTime>
                    <nsTypes:EndTime>2017-10-25T20:22:15Z</nsTypes:EndTime>
                </nsTypes:TimeWindow>
                <nsTypes:MergedFreeBusyIntervalInMinutes>15</nsTypes:MergedFreeBusyIntervalInMinutes>
                <nsTypes:RequestedView>DetailedMerged</nsTypes:RequestedView>
            </nsTypes:FreeBusyViewOptions>
        </nsMessages:GetUserAvailabilityRequest>
    </nsSoap:Body>
</nsSoap:Envelope>

• This request is preceded by the following log entries (line numbers might be different):

1st-setup:2017-8-3 22:22:15.772:[Team] getOnlyFreeBusyInformation: aRangeStart:1970/01/01 00:00:00 UTC isDate=0 nativeTime=0, aRangeEnd:2017/09/21 00:00:00 Europe/Berlin isDate=1 nativeTime=1505944800000000 (_getOnlyFreeBusyInformation in mivExchangeCalendar.js:8558)
1st-setup:2017-8-3 22:22:15.773:[Team] getOnlyFreeBusyInformation: aRangeStart is 1970. To big a range. Setting startrange to 40 days before endrange. (_getOnlyFreeBusyInformation in mivExchangeCalendar.js:8566)

• The server response is as follows:

<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Body>
        <s:Fault>
            <faultcode xmlns:a="http://schemas.microsoft.com/exchange/services/2006/types">a:ErrorInvalidMergedFreeBusyInterval</faultcode>
            <faultstring xml:lang="en-US">The specified merged free/busy interval is not valid. Specify an interval that is less than the free/busy time window and  between 5 and 1440 minutes.</faultstring>
            <detail>
                <m:ErrorCode xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages">5004</m:ErrorCode>
            </detail>
        </s:Fault>
    </s:Body>
</s:Envelope>

Expected behavior:

• Valid range is sent to server and calendar entries are shown.

[advancingu]

Update: I investigated a bit more and it appears that this is problem is not necessarily causing the calendar to not show any information. Nevertheless, this server response should never be triggered by a bad request.