Make sure comparison works

Author: keithwhor

lib/gateway.js

@@ -1653,31 +1653,33 @@ class Gateway extends EventEmitter {
   createServerSentEvent (executionUuid, logId, eventName, value, silent = false, greaterThanTimestamp = null) {
     let sseInstance = this._serverSentEvents[executionUuid];
     let timestamp = new Date().toISOString();
-    if (greaterThanTimestamp && timestamp < greaterThanTimestamp) {
-      timestamp = greaterThanTimestamp;
+    // Incremenet this counter so IDs don't overlap
+    let i = 0;
+    if (greaterThanTimestamp && timestamp <= greaterThanTimestamp) {
+      let unixTimestamp = new Date(greaterThanTimestamp).valueOf();
+      timestamp = new Date(unixTimestamp + 1).toISOString();
     }
-    if (sseInstance) {
+    if (silent || sseInstance) {
       let printId = true;
       if (logId === -1) {
         printId = false;
         logId = null;
       }
       if (!logId) {
-        let i = 0;
         let lpad = (i, len) => {
           let s = i.toString();
           return '0'.repeat(Math.max(0, len - s.length)) + s;
         };
         let endChar = timestamp[timestamp.length - 1];
         let time = timestamp.slice(0, -1);
         logId = [time, lpad(i++, 6), endChar, '/', executionUuid].join('');
-        while (sseInstance.ids[logId]) {
+        while (!silent && sseInstance.ids[logId]) {
           logId = [time, lpad(i++, 6), endChar, '/', executionUuid].join('');
         }
       }
-      if (!sseInstance.ids[logId]) {
-        sseInstance.ids[logId] = true;
+      if (silent || !sseInstance.ids[logId]) {
         if (!silent) {
+          sseInstance.ids[logId] = true;
           sseInstance.buffer = Buffer.concat([
             sseInstance.buffer,
             Buffer.from([