Index: sources/gui/qml/components/RangeBar.qml
===================================================================
diff -u -rc9f8f8cf3c6c37fc6460d8675c62c9442c4d4263 -r7a3b2be13e96583f480f9f01be540588e6c4670c
--- sources/gui/qml/components/RangeBar.qml	(.../RangeBar.qml)	(revision c9f8f8cf3c6c37fc6460d8675c62c9442c4d4263)
+++ sources/gui/qml/components/RangeBar.qml	(.../RangeBar.qml)	(revision 7a3b2be13e96583f480f9f01be540588e6c4670c)
@@ -55,7 +55,7 @@
         minimum : lowerBound
         maximum : upperBound
 
-        minText.visible: true
+        minText.visible: minimum != maximum // When min==max, only show the maximum label to avoid overlap
         maxText.visible: true
 
         minText.anchors.leftMargin  : lowerTextHorizontalCenter ? -minText.width / 2 : 0