Fix a memory allocation bug in the (debug-use-only) json_parse() SQL function.

FossilOrigin-Name: 32ce7dacf58bbf35cf70da8b03fa25f97fcea970edbc1f8aa12739ac4c8608fb

manifest

@@ -1,5 +1,5 @@
-C Detect\smalformed\snested\sJSONB\searlier\sand\sstop\srendering\sto\savoid\slong\ndelays.
-D 2024-01-29T21:09:56.917
+C Fix\sa\smemory\sallocation\sbug\sin\sthe\s(debug-use-only)\sjson_parse()\sSQL\sfunction.
+D 2024-01-31T12:15:57.302
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -698,7 +698,7 @@ F src/hash.h 3340ab6e1d13e725571d7cee6d3e3135f0779a7d8e76a9ce0a85971fa3953c51
 F src/hwtime.h f9c2dfb84dce7acf95ce6d289e46f5f9d3d1afd328e53da8f8e9008e3b3caae6
 F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
 F src/insert.c 3f0a94082d978bbdd33c38fefea15346c6c6bffb70bc645a71dc0f1f87dd3276
-F src/json.c 4f824b70a65c426f4ff518f99adb9b4fb97d6c8692e59c4525cae453972853f5
+F src/json.c 192c5e5013607b14441a738f0bd73e9df057b13eeac4060b679b32021a25e018
 F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
 F src/loadext.c 7432c944ff197046d67a1207790a1b13eec4548c85a9457eb0896bb3641dfb36
 F src/main.c 438b95162acfa17b7d218f586f5bde11d6ae82bcf030c9611fc537556870ad6b
@@ -2161,8 +2161,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 97666ec052ebaceab002874d7ca5c5e6883c3d04fb7d3992235a8c4c8d08407a
-R 95e4cc745d61f1468c48968bf1c52952
+P 72f3e1d0eca2b9ebd7c4b4cdccc6d7a0173b2fdb204cb1aa207917aedab6098a
+R 1df2c3fb322d8908152fe23b99fe1f47
 U drh
-Z e9314520b095df0616cee88d0104a95d
+Z d967a8cc96a8b8a2072c7fb0795b6f21
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-72f3e1d0eca2b9ebd7c4b4cdccc6d7a0173b2fdb204cb1aa207917aedab6098a
+32ce7dacf58bbf35cf70da8b03fa25f97fcea970edbc1f8aa12739ac4c8608fb

src/json.c

@@ -3552,11 +3552,12 @@ static void jsonParseFunc(
   if( p==0 ) return;
   if( argc==1 ){
     jsonDebugPrintBlob(p, 0, p->nBlob, 0, &out);
-    sqlite3_result_text64(ctx, out.zText, out.nChar, SQLITE_DYNAMIC, SQLITE_UTF8);
+    sqlite3_result_text64(ctx,out.zText,out.nChar,SQLITE_TRANSIENT,SQLITE_UTF8);
   }else{
     jsonShowParse(p);
   }
   jsonParseFree(p);
+  sqlite3_str_reset(&out);
 }
 #endif /* SQLITE_DEBUG */