5 files changed, 29 insertions, 0 deletions
diff --git a/test/files/buildmanager/t2650_4/A.scala b/test/files/buildmanager/t2650_4/A.scala
new file mode 100644
index 0000000000..b9a519eb48
--- /dev/null
+++ b/test/files/buildmanager/t2650_4/A.scala
@@ -0,0 +1,5 @@
+trait A {
+  type T = Int
+  type T2 = T
+  def x: T2
+}
diff --git a/test/files/buildmanager/t2650_4/B.scala b/test/files/buildmanager/t2650_4/B.scala
new file mode 100644
index 0000000000..46a8cf270a
--- /dev/null
+++ b/test/files/buildmanager/t2650_4/B.scala
@@ -0,0 +1,3 @@
+object B {
+  def x(a: A): Int = a.x
+}
diff --git a/test/files/buildmanager/t2650_4/t2650_4.changes/A2.scala b/test/files/buildmanager/t2650_4/t2650_4.changes/A2.scala
new file mode 100644
index 0000000000..0220e7b7bc
--- /dev/null
+++ b/test/files/buildmanager/t2650_4/t2650_4.changes/A2.scala
@@ -0,0 +1,5 @@
+trait A {
+  type T = Long
+  type T2 = T
+  def x: T2
+}
diff --git a/test/files/buildmanager/t2650_4/t2650_4.check b/test/files/buildmanager/t2650_4/t2650_4.check
new file mode 100644
index 0000000000..ba092d013f
--- /dev/null
+++ b/test/files/buildmanager/t2650_4/t2650_4.check
@@ -0,0 +1,13 @@
+builder > A.scala B.scala
+compiling Set(A.scala, B.scala)
+Changes: Map()
+builder > A.scala
+compiling Set(A.scala)
+Changes: Map(trait A -> List(Changed(Definition(A.T))[type T changed from A.this.T to A.this.T flags: ]))
+invalidate B.scala because it references changed definition [Changed(Definition(A.T))[type T changed from A.this.T to A.this.T flags: ]]
+compiling Set(B.scala)
+B.scala:2: error: type mismatch;
+ found   : a.T2
+ required: Int
+  def x(a: A): Int = a.x
+                       ^
diff --git a/test/files/buildmanager/t2650_4/t2650_4.test b/test/files/buildmanager/t2650_4/t2650_4.test
new file mode 100644
index 0000000000..6f3bd03361
--- /dev/null
+++ b/test/files/buildmanager/t2650_4/t2650_4.test
@@ -0,0 +1,3 @@
+>>compile A.scala B.scala
+>>update A.scala=>A2.scala
+>>compile A.scala