fix search broken bug with incomplete filter (#3935)

ts/webui/src/components/trial-detail/search/Search.tsx

@@ -154,6 +154,15 @@ function Search(props): any {
         }
 
         allFilterConditions.forEach(eachFilterConditionStr => {
+            // input content looks like that: `Trial id:`
+            if (
+                eachFilterConditionStr.endsWith(':') ||
+                eachFilterConditionStr.endsWith('<') ||
+                eachFilterConditionStr.endsWith('>') ||
+                eachFilterConditionStr.endsWith('≠')
+            ) {
+                return;
+            } else {
                 let eachFilterConditionArr: string[] = [];
 
                 // EXPERIMENT.searchSpace[parameter]._type === 'choice'
@@ -181,13 +190,15 @@ function Search(props): any {
                         choice: isChoicesType ? convertStringArrToList(eachFilterConditionArr[1]) : [],
                         isChoice: isChoicesType ? true : false
                     });
-            } else {
+                } else if (eachFilterConditionStr.includes(':')) {
                     // = : conv_size:[1,2,3,4]; Trial id:3; hidden_size:[1,2], status:[val1,val2,val3]
                     eachFilterConditionArr = eachFilterConditionStr.trim().split(':');
                     const filterName = eachFilterConditionArr[0] === 'Status' ? 'StatusNNI' : eachFilterConditionArr[0];
                     const isChoicesType = isChoiceType(filterName);
                     const isArray =
-                    eachFilterConditionArr.length > 1 && eachFilterConditionArr[1].includes('[' || ']') ? true : false;
+                        eachFilterConditionArr.length > 1 && eachFilterConditionArr[1].includes('[' || ']')
+                            ? true
+                            : false;
                     if (isArray === true) {
                         if (isChoicesType === true) {
                             // status:[SUCCEEDED]
@@ -220,9 +231,12 @@ function Search(props): any {
                             isChoice: false
                         });
                     }
+                } else {
+                    // user input: Trial id
+                    return;
+                }
             }
         });
-
         changeTableListPage(newSearchFilter);
     }