--- a/mercurial/cmdutil.py	Thu Dec 05 14:28:21 2019 -0800
+++ b/mercurial/cmdutil.py	Mon Dec 09 22:24:58 2019 -0800
@@ -793,6 +793,13 @@
             fm.data(unresolved=True)
 
     def formatfooter(self, fm):
+        fm.startitem()
+        fm.data(
+            itemtype=b'morestatus',
+            unfinished=self.unfinishedop,
+            unfinishedmsg=self.unfinishedmsg,
+        )
+
         statemsg = (
             _(b'The repository is in an unfinished *%s* state.')
             % self.unfinishedop

--- a/mercurial/commands.py	Thu Dec 05 14:28:21 2019 -0800
+++ b/mercurial/commands.py	Mon Dec 09 22:24:58 2019 -0800
@@ -6884,7 +6884,7 @@
             for f in files:
                 fm.startitem()
                 fm.context(ctx=ctx2)
-                fm.data(path=f)
+                fm.data(itemtype=b'file', path=f)
                 fm.condwrite(showchar, b'status', b'%s ', char, label=label)
                 fm.plain(fmt % uipathfn(f), label=label)
                 if f in copy:

--- a/tests/test-conflict.t	Thu Dec 05 14:28:21 2019 -0800
+++ b/tests/test-conflict.t	Mon Dec 09 22:24:58 2019 -0800
@@ -63,13 +63,20 @@
   $ hg status -Tjson
   [
    {
+    "itemtype": "file",
     "path": "a",
     "status": "M",
     "unresolved": true
    },
    {
+    "itemtype": "file",
     "path": "a.orig",
     "status": "?"
+   },
+   {
+    "itemtype": "morestatus",
+    "unfinished": "merge",
+    "unfinishedmsg": "To continue:    hg commit\nTo abort:       hg merge --abort"
    }
   ]
 

--- a/tests/test-status.t	Thu Dec 05 14:28:21 2019 -0800
+++ b/tests/test-status.t	Mon Dec 09 22:24:58 2019 -0800
@@ -254,35 +254,43 @@
   $ hg status -A -Tjson
   [
    {
+    "itemtype": "file",
     "path": "added",
     "status": "A"
    },
    {
+    "itemtype": "file",
     "path": "copied",
     "source": "modified",
     "status": "A"
    },
    {
+    "itemtype": "file",
     "path": "removed",
     "status": "R"
    },
    {
+    "itemtype": "file",
     "path": "deleted",
     "status": "!"
    },
    {
+    "itemtype": "file",
     "path": "unknown",
     "status": "?"
    },
    {
+    "itemtype": "file",
     "path": "ignored",
     "status": "I"
    },
    {
+    "itemtype": "file",
     "path": ".hgignore",
     "status": "C"
    },
    {
+    "itemtype": "file",
     "path": "modified",
     "status": "C"
    }
@@ -558,6 +566,7 @@
   $ hg status --config ui.formatdebug=True --rev 1 1
   status = [
       {
+          'itemtype': 'file',
           'path': '1/2/3/4/5/b.txt',
           'status': 'R'
       },