Text boxes: Return full word even if it doesn't fit in the column width

It does mean that the text now can be outside the text box, but this is
better than an infinite loop.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/10668

common/font/font.cpp

@@ -454,17 +454,24 @@ void FONT::LinebreakText( wxString& aText, int aColumnWidth, const VECTOR2I& aSi
                     aText += " ";
                     lineWidth += spaceWidth;
                 }
-
-                aText += words[jj].first;
-                lineWidth += words[jj].second;
-
-                jj++;
             }
-            else
+            else if( lineWidth > 0 )
             {
                 aText += '\n';
                 lineWidth = 0;
+                continue;
             }
+            else
+            {
+                // TODO: Would we want to further split the words into characters when it doesn't fit
+                // in the column width? For now just return the full word even if it doesn't fit
+                // to avoid an infinite loop.
+            }
+
+            aText += words[jj].first;
+            lineWidth += words[jj].second;
+
+            jj++;
         }
     }
 }