diff -urpN jumbo-unstable2/src/formats.c jumbo-unstable3/src/formats.c
--- jumbo-unstable2/src/formats.c	2012-05-27 20:04:54.031250000 +0000
+++ jumbo-unstable3/src/formats.c	2012-05-27 20:24:13.625000000 +0000
@@ -90,7 +90,7 @@ char *fmt_self_test(struct fmt_main *for
 	done = 0;
 	index = 0; max = format->params.max_keys_per_crypt;
 	do {
-		char *prepared, *sourced, Buf[LINE_BUFFER_SIZE];
+		char *prepared;
 		current->flds[1] = current->ciphertext;
 		prepared = format->methods.prepare(current->flds, format);
 		if (!prepared || strlen(prepared) < 7) // $dummy$ can be just 7 bytes long.
@@ -102,11 +102,6 @@ char *fmt_self_test(struct fmt_main *for
 
 		binary = format->methods.binary(ciphertext);
 		salt = format->methods.salt(ciphertext);
-		if (format->methods.get_source != fmt_default_get_source) {
-			sourced = format->methods.get_source(binary, salt, Buf);
-			if (strcmp(sourced, prepared))
-				return "get_source";
-		}
 
 		if ((unsigned int)format->methods.salt_hash(salt) >=
 		    SALT_HASH_SIZE)