--- a/Plugins/VcsPlugins/vcsMercurial/hg.py	Thu Feb 09 20:03:00 2017 +0100
+++ b/Plugins/VcsPlugins/vcsMercurial/hg.py	Fri Feb 10 19:49:38 2017 +0100
@@ -2547,7 +2547,10 @@
             revs, baseRevs, compression, all = dlg.getParameters()
         else:
             revs = bundleData["revs"]
-            baseRevs = [bundleData["base"]]
+            if bundleData["base"]:
+                baseRevs = [bundleData["base"]]
+            else:
+                baseRevs = []
             compression = ""
             all = bundleData["all"]