diff --git a/tests/test-flags b/tests/test-flags
new file mode 100755
--- /dev/null
+++ b/tests/test-flags
@@ -0,0 +1,35 @@
+#!/bin/sh +ex
+
+mkdir test1
+cd test1
+
+hg init
+touch a b
+hg add a b
+hg ci -t "added a b" -u test -d "0 0"
+
+cd ..
+mkdir test2
+cd test2
+
+hg init
+hg merge ../test1
+hg co
+chmod +x a
+hg ci -t "chmod +x a" -u test -d "0 0"
+
+cd ../test1
+echo 123 >>a
+hg ci -t "a updated" -u test -d "0 0"
+
+ls -l ../test[12]/a
+
+hg merge ../test2
+hg heads
+hg history
+
+hg -dv co -m
+
+ls -l ../test[12]/a > foo
+cut -b 0-10 < foo
+