On pc Debian x86-64 with master sources updated yesterday (debug mode), I've got a crash when trying to view properties of a field report.

bt extract:
#6  0x00002aaaabcb6872 in __cxa_call_unexpected () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7  0x00002aaae3a30a42 in pcr::FormComponentPropertyHandler::actuatingPropertyChanged (this=0x69987f0, _rActuatingPropertyName="FormatKey", _rNewValue=uno::Any 10000, 
    _rxInspectorUI=uno::Reference to (pcr::CachedInspectorUI *) 0x6a6e7a8, _bFirstTimeInit=1 '\001')
    at /home/julien/compile-libreoffice/libreoffice/extensions/source/propctrlr/formcomponenthandler.cxx:1521
#8  0x00002aaae04e960a in rptui::ReportComponentHandler::actuatingPropertyChanged (this=0x6998b00, ActuatingPropertyName="FormatKey", NewValue=uno::Any 10000, 
    OldValue=uno::Any 10000, InspectorUI=uno::Reference to (pcr::CachedInspectorUI *) 0x6a6e7a8, FirstTimeInit=1 '\001')
    at /home/julien/compile-libreoffice/libreoffice/reportdesign/source/ui/inspection/ReportComponentHandler.cxx:204
#9  0x00002aaae3a89ea3 in pcr::OPropertyBrowserController::impl_broadcastPropertyChange_nothrow (this=0x6972ab0, _rPropertyName="FormatKey", _rNewValue=uno::Any 10000, 
    _rOldValue=uno::Any 10000, _bFirstTimeInit=true) at /home/julien/compile-libreoffice/libreoffice/extensions/source/propctrlr/propcontroller.cxx:1737
#10 0x00002aaae3a87020 in pcr::OPropertyBrowserController::UpdateUI (this=0x6972ab0)
    at /home/julien/compile-libreoffice/libreoffice/extensions/source/propctrlr/propcontroller.cxx:1267
#11 0x00002aaae3a85316 in pcr::OPropertyBrowserController::impl_rebindToInspectee_nothrow (this=0x6972ab0, _rObjects=std::__debug::vector of length 1, capacity 1 = {...})
    at /home/julien/compile-libreoffice/libreoffice/extensions/source/propctrlr/propcontroller.cxx:967
#12 0x00002aaae3a81b84 in pcr::OPropertyBrowserController::inspect (this=0x6972ab0, _rObjects=uno::Sequence of length 1 = {...})
    at /home/julien/compile-libreoffice/libreoffice/extensions/source/propctrlr/propcontroller.cxx:284
#13 0x00002aaae051d19c in rptui::PropBrw::implSetNewObject (this=0x69653d0, _aObjects=uno::Sequence of length 1 = {...})
    at /home/julien/compile-libreoffice/libreoffice/reportdesign/source/ui/report/propbrw.cxx:318
#14 0x00002aaae051e58d in rptui::PropBrw::Update (this=0x69653d0, pNewView=0x3327f90)
    at /home/julien/compile-libreoffice/libreoffice/reportdesign/source/ui/report/propbrw.cxx:521
#15 0x00002aaae050f02a in rptui::ODesignView::MarkTimeout (this=0x2f6b820) at /home/julien/compile-libreoffice/libreoffice/reportdesign/source/ui/report/DesignView.cxx:271
#16 0x00002aaae050efab in rptui::ODesignView::LinkStubMarkTimeout (pThis=0x2f6b820, pCaller=0x2f6d818)
    at /home/julien/compile-libreoffice/libreoffice/reportdesign/source/ui/report/DesignView.cxx:267

Breakpoint 1, pcr::FormComponentPropertyHandler::actuatingPropertyChanged (this=0x69987f0, _rActuatingPropertyName="FormatKey", _rNewValue=uno::Any 10000, 
    _rxInspectorUI=uno::Reference to (pcr::CachedInspectorUI *) 0x6a6e7a8, _bFirstTimeInit=1 '\001')
    at /home/julien/compile-libreoffice/libreoffice/extensions/source/propctrlr/formcomponenthandler.cxx:1523
1523	        if ( !_rxInspectorUI.is() )
(gdb) n
1526	        ::osl::MutexGuard aGuard( m_aMutex );
(gdb) 
1527	        PropertyId nActuatingPropId( impl_getPropertyId_nothrow( _rActuatingPropertyName ) );
(gdb) 
1529	        ::std::vector< PropertyId > aDependentProperties;
(gdb) 
1531	        switch ( nActuatingPropId )
(gdb) 
1742	            Reference< XNumberFormatsSupplier >  xSupplier;
(gdb) 
1743	            OSL_VERIFY( m_xComponent->getPropertyValue( PROPERTY_FORMATSSUPPLIER ) >>= xSupplier );
(gdb) 
terminate called after throwing an instance of 'com::sun::star::beans::UnknownPropertyException'