Merge branch '#1062949-LöschenEigenschaftenInkonsistent' into '2020.2.0'

#1062949-LöschenEigenschaftenInkonsistent Überprüfung Auswahl-Value

See merge request xrm/basic!415

process/Attribute_lib/process.js

@@ -1624,7 +1624,8 @@ AttributeRelationQuery.prototype.getSingleAttributeValue = function ()
 AttributeRelationQuery.prototype.getAttributeCount = function ()
 {
     return parseInt(AttributeRelationUtils.getAttributeSqlBuilder("count(*)", this._rowId, this._objectType)
-        .andIfSet("AB_ATTRIBUTERELATION.AB_ATTRIBUTE_ID", this._attributeIds, SqlBuilder.IN())
+        .and(newWhereIfSet( "AB_ATTRIBUTERELATION.AB_ATTRIBUTE_ID", this._attributeIds, SqlBuilder.IN())
+            .orIfSet("AB_ATTRIBUTERELATION.ID_VALUE", this._attributeIds, SqlBuilder.IN()))
         .cell() || 0);
 }