Index: src/render/katerenderer.cpp
===================================================================
--- src/render/katerenderer.cpp
+++ src/render/katerenderer.cpp
@@ -560,10 +560,14 @@
         currentViewLine = range->viewLineForColumn(cursor->column());
     }
 
+    bool foobar = (currentViewLine >= 0) ? true : false;
+
     paintTextLineBackground(paint, range, currentViewLine, xStart, xEnd);
 
     if (range->layout()) {
         bool drawSelection = m_view && m_view->selection() && showSelections() && m_view->selectionRange().overlapsLine(range->line());
+        foobar = foobar || drawSelection;
+
         // Draw selection in block selection mode. We need 2 kinds of selections that QTextLayout::draw can't render:
         //   - past-end-of-line selection and
         //   - 0-column-wide selection (used to indicate where text will be typed)
@@ -706,7 +710,7 @@
             }
 
             // draw tab stop indicators
-            if (showTabs()) {
+            if (showTabs() || foobar) {
                 int tabIndex = text.indexOf(tabChar, line.lineLayout().xToCursor(xStart));
                 while (tabIndex != -1 && tabIndex < line.endCol()) {
                     int x = line.lineLayout().cursorToX(tabIndex);
@@ -719,7 +723,7 @@
             }
 
             // draw trailing spaces
-            if (showSpaces() != KateDocumentConfig::None) {
+            if ((showSpaces() != KateDocumentConfig::None) || foobar) {
                 int spaceIndex = line.endCol() - 1;
                 const int trailingPos = showSpaces() == KateDocumentConfig::All ? 0 : qMax(range->textLine()->lastChar(), 0);
 
@@ -743,7 +747,7 @@
                 }
             }
 
-            if (showNonPrintableSpaces()) {
+            if (showNonPrintableSpaces() || foobar) {
                 const int y = lineHeight() * i + fm.ascent();
 
                 static const QRegularExpression nonPrintableSpacesRegExp(QStringLiteral("[\\x{2000}-\\x{200F}\\x{2028}-\\x{202F}\\x{205F}-\\x{2064}\\x{206A}-\\x{206F}]"));