Test case fixes (#14219)

* Test case fixes

* fetch_from fixes

erpnext/assets/doctype/asset_maintenance_log/asset_maintenance_log.json

@@ -403,6 +403,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_from": "task.next_due_date", 
    "fieldname": "due_date", 
    "fieldtype": "Date", 
    "hidden": 0, 
@@ -415,7 +416,7 @@
    "label": "Due Date", 
    "length": 0, 
    "no_copy": 0, 
-   "options": "task.next_due_date", 
+   "options": "", 
    "permlevel": 0, 
    "precision": "", 
    "print_hide": 0, 
@@ -528,6 +529,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_from": "task.has_certificate", 
    "fieldname": "has_certificate", 
    "fieldtype": "Check", 
    "hidden": 0, 
@@ -540,7 +542,7 @@
    "label": "Has Certificate ", 
    "length": 0, 
    "no_copy": 0, 
-   "options": "task.has_certificate", 
+   "options": "", 
    "permlevel": 0, 
    "precision": "", 
    "print_hide": 0, 
@@ -753,7 +755,7 @@
  "issingle": 0, 
  "istable": 0, 
  "max_attachments": 0, 
- "modified": "2018-05-16 22:43:39.866477",
+ "modified": "2018-05-25 22:43:39.866477",
  "modified_by": "Administrator", 
  "module": "Assets", 
  "name": "Asset Maintenance Log",