Draft: Disbled by default the use of the Support property in Draft objects

src/Mod/Draft/DraftTools.py

@@ -274,7 +274,7 @@ class DraftTool:
         qr = '('+str(qr[0])+','+str(qr[1])+','+str(qr[2])+','+str(qr[3])+')'
 
         # support object
-        if self.support:
+        if self.support and FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Draft").GetBool("useSupport",False):
             sup = 'FreeCAD.ActiveDocument.getObject("' + self.support.Name + '")'
         else:
             sup = 'None'

src/Mod/Draft/Resources/ui/preferences-draft.ui

@@ -318,6 +318,22 @@ Values with differences below this value will be treated as same. This value wil
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="Gui::PrefCheckBox" name="checkBox_2">
+        <property name="toolTip">
+         <string>If this option is set, when creating Draft objects on top of an existing face of another object, the &quot;Support&quot; property of the Draft object will be set to the base object. This was the standard behaviour before FreeCAD 0.19</string>
+        </property>
+        <property name="text">
+         <string>Set the Support properry when possible</string>
+        </property>
+        <property name="prefEntry" stdset="0">
+         <cstring>useSupport</cstring>
+        </property>
+        <property name="prefPath" stdset="0">
+         <cstring>Mod/Draft</cstring>
+        </property>
+       </widget>
+      </item>
       <item>
        <layout class="QHBoxLayout" name="horizontalLayout_3">
         <item>