diff --git a/VERSION b/VERSION
index 3eefcb9..e752649 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.0
+1.0.1.dev0
diff --git a/bogusfile.txt b/bogusfile.txt
new file mode 100644
index 0000000..44e1cb4
--- /dev/null
+++ b/bogusfile.txt
@@ -0,0 +1 @@
+Test that reusing a tag is rejected