Fix an invalid match of ascii word classes when invalid utf is enabled

Fixes #224

Author: Zoltan Herczeg

ChangeLog

@@ -75,6 +75,9 @@ the same time, fixed a typo in the Bazel file.
 17. Add PCRE2_EXTRA_ASCII_DIGIT to allow [:digit:] to be kept on sync with \d
 even in UCP mode.
 
+18. Fix an invalid match of ascii word classes when invalid utf is enabled.
+
+
 Version 10.42 11-December-2022
 ------------------------------
 

src/pcre2_jit_compile.c

@@ -4143,6 +4143,7 @@ if (negated)
 
   if (common->invalid_utf)
     {
+    OP1(SLJIT_MOV, TMP1, 0, TMP2, 0);
     add_jump(compiler, &common->utfreadchar_invalid, JUMP(SLJIT_FAST_CALL));
     add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR));
     OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);

src/pcre2_jit_test.c

@@ -1981,6 +1981,7 @@ static const struct invalid_utf8_regression_test_case invalid_utf8_regression_te
 	{ PCRE2_UTF, CI, 0, 0, 0, 7, 11, { "#\xc7\x85#", NULL }, "\x80\x80#\xc7\x80\x80\x80#\xc7\x85#" },
 
 	{ PCRE2_UTF | PCRE2_UCP, CI, 0, 0, 0, -1, -1, { "[\\s]", NULL }, "\xed\xa0\x80" },
+	{ PCRE2_UTF, CI, 0, 0, 0, 1, 4, { "[\\D]", NULL }, "@\xe0\xab\xaa@" },
 
 	/* These two are not invalid UTF tests, but this infrastructure fits better for them. */
 	{ 0, PCRE2_JIT_COMPLETE, 0, 0, 1, -1, -1, { "\\X{2}", NULL }, "\r\n\n" },