diff --git a/qpkg/test/bug-adding b/qpkg/test/bug-adding
index 995003c..93e80d3 100755
--- a/qpkg/test/bug-adding
+++ b/qpkg/test/bug-adding
@@ -42,3 +42,57 @@ EOF
 expect <<EOF
 package C version 0 has cyclic dependency
 EOF
+
+###############################################################################
+
+#
+# We also fail (badly) to restore QPKG_ADDING after we moved on:
+#
+# A -> B, D
+# B -> C_1
+#      C_0 -> B
+# D conflicts with C_1
+#
+# "resolve" recurses as follows:
+#
+# A_0		-> B
+#   B_0|D	-> C
+#     C_1|D	-> next (we clear B here !)
+#       D_0	-> done
+#     C_0|D	-> next (we try to clear B again)
+#
+
+qpkg_fail "BUG: we don't restore QPKG_ADDING, missing errors" \
+  prereq A <<EOF
+Package: D
+Version: 0
+Architecture: test
+Filename: D
+
+Package: C
+Version: 1
+Architecture: test
+Filename: C_1
+
+Package: C
+Version: 0
+Architecture: test
+Depends: B
+Filename: C_0
+
+Package: B
+Version: 0
+Architecture: test
+Depends: C
+Filename: B
+
+Package: A
+Version: 0
+Architecture: test
+Depends: B, D
+Filename: A
+EOF
+expect <<EOF
+qpkg: prereq.c:185: resolve: Assertion \`top->pkg->flags & QPKG_ADDING' failed.
+Aborted
+EOF