[mv3] Fix overwriting valid DNR rules with invalid entries

This fixes a flaw which has existed since the first version of
uBO Lite.

Related issue:
- https://github.com/uBlockOrigin/uBOL-issues/issues/11

Related commit:
- a559f5f271

platform/mv3/make-rulesets.js

@@ -304,27 +304,27 @@ async function processNetworkFilters(assetDetails, network) {
 
     writeFile(
         `${rulesetDir}/main/${assetDetails.id}.json`,
-        `${JSON.stringify(plainGood, replacer)}\n`
+        `${JSON.stringify(plainGood, replacer, 1)}\n`
     );
 
     if ( regexes.length !== 0 ) {
         writeFile(
             `${rulesetDir}/regex/${assetDetails.id}.json`,
-            `${JSON.stringify(regexes, replacer)}\n`
+            `${JSON.stringify(regexes, replacer, 1)}\n`
         );
     }
 
     if ( removeparamsGood.length !== 0 ) {
         writeFile(
             `${rulesetDir}/removeparam/${assetDetails.id}.json`,
-            `${JSON.stringify(removeparamsGood, replacer)}\n`
+            `${JSON.stringify(removeparamsGood, replacer, 1)}\n`
         );
     }
 
     if ( redirects.length !== 0 ) {
         writeFile(
             `${rulesetDir}/redirect/${assetDetails.id}.json`,
-            `${JSON.stringify(redirects, replacer)}\n`
+            `${JSON.stringify(redirects, replacer, 1)}\n`
         );
     }
 

src/js/static-net-filtering.js

@@ -4277,6 +4277,7 @@ FilterContainer.prototype.dnrFromCompiled = function(op, context, ...args) {
     }
 
     // Patch id
+    const rulesetFinal = [];
     {
         let ruleId = 1;
         for ( const rule of rulesetMap.values() ) {
@@ -4285,16 +4286,15 @@ FilterContainer.prototype.dnrFromCompiled = function(op, context, ...args) {
             } else {
                 rule.id = 0;
             }
+            rulesetFinal.push(rule);
         }
         for ( const invalid of context.invalid ) {
-            rulesetMap.set(ruleId++, {
+            rulesetFinal.push({ _error: [ invalid ] });
-                _error: [ invalid ],
-            });
         }
     }
 
     return {
-        ruleset: Array.from(rulesetMap.values()),
+        ruleset: rulesetFinal,
         filterCount: context.filterCount,
         acceptedFilterCount: context.acceptedFilterCount,
         rejectedFilterCount: context.rejectedFilterCount,