@@ -13,7 +13,7 @@ public static class StringExtension
 		[DebuggerStepThrough]
 		public static bool IsPrintable(this char c)
 		{
-			return !char.IsControl(c) || char.IsWhiteSpace(c);
+			return (!char.IsControl(c) || char.IsWhiteSpace(c)) && c != '\xFFFD' /* Unicode REPLACEMENT CHARACTER � */;
 		}
 
 		[DebuggerStepThrough]
Original file line number	Diff line number	Diff line change
`@@ -13,7 +13,7 @@ public static class StringExtension`
`13`	`13`	`[DebuggerStepThrough]`
`14`	`14`	`public static bool IsPrintable(this char c)`
`15`	`15`	`{`
`16`		`- return !char.IsControl(c) \|\| char.IsWhiteSpace(c);`
	`16`	`+ return (!char.IsControl(c) \|\| char.IsWhiteSpace(c)) && c != '\xFFFD' /* Unicode REPLACEMENT CHARACTER � */;`
`17`	`17`	`}`
`18`	`18`
`19`	`19`	`[DebuggerStepThrough]`