Fix minor oversight in previous patch. Fixes clusterfuzz 15199.

src/pcre2_compile.c

@@ -2681,8 +2681,11 @@ while (ptr < ptrend)
 
       switch(escape)
         {
-        case 0:
-        PARSED_LITERAL(c, parsed_pattern);
+        case 0:                    /* Don't use PARSED_LITERAL() because it */
+#if PCRE2_CODE_UNIT_WIDTH == 32    /* sets okquantifier. */
+        if (c >= META_END) *parsed_pattern++ = META_BIGVALUE;
+#endif
+        *parsed_pattern++ = c;
         break;
 
         case ESC_Q:

testdata/testinput2

@@ -5603,4 +5603,6 @@ a)"xI
     abc
     axy
 
+/(*:\)?/
+
 # End of testinput2

testdata/testoutput2

@@ -16959,6 +16959,9 @@ Failed: error 197 at offset 131075: too many capturing groups (maximum 65535)
  0: a
 MK: XX
 
+/(*:\)?/
+Failed: error 109 at offset 5: quantifier does not follow a repeatable item
+
 # End of testinput2
 Error -70: PCRE2_ERROR_BADDATA (unknown error number)
 Error -62: bad serialized data