#572 fixed vue warnings:'Prop being mutated'

web-src/src/common/components/history/executions-log-table.vue

@@ -65,7 +65,9 @@ export default {
   data() {
     return {
       filteredRows: this.rows ? [...this.rows] : [],
-      searchText: ''
+      searchText: '',
+      mySortColumn: this.sortColumn,
+      myAscending: this.ascending
     }
   },
 
@@ -84,24 +86,24 @@ export default {
 
   methods: {
     showSort: function (sortKey) {
-      if (this.sortColumn === sortKey) {
-        return this.ascending ? 'sorted asc' : 'sorted desc'
+      if (this.mySortColumn === sortKey) {
+        return this.myAscending ? 'sorted asc' : 'sorted desc'
       }
     },
 
     sortBy: function (sortKey) {
       if (this.sortColumn === sortKey) {
-        this.ascending = !this.ascending;
+        this.myAscending = !this.myAscending;
       } else {
-        this.ascending = true;
+        this.myAscending = true;
         this.sortColumn = sortKey;
       }
 
       this.sort();
     },
 
     sort: function() {
-      let ascending = this.ascending;
+      let ascending = this.myAscending;
       let column = this.sortColumn;
 
       this.filteredRows.sort((a, b) => {