git diff --numstat <branch> always shows dirty submodules

[Gelonida N <gelonida@gmail.com>]

Hi,

I recently started using submodules and they behave mostly as I like to.


Normally I use diff --numstat <branch>
to check quickly whether I am aligned with another branch or not.

The (for me) annoying feature of submodules is, that they are always
reported to be different due to files, which are not under git.


I type git diff --numstat master
I get
1       1       mysubmodule


Now I check the differences with git diff master mysubmodule
diff --git a/mysubmodule b/mysubmodule
index 1382b73..f4f1f1d 160000
--- a/mysubmodule
+++ b/mysubmodule
@@ -1 +1 @@
-Subproject commit xxxxxxxxx
+Subproject commit xxxxxxxxx-dirty

So the only difference (which I wasn't interested in) is, that the
submodule is dirty.


Is there any quick way flag / helper script / . . .
to show differences between two branches without raising the fact, that
submodules are dirty?

>From a user perspective I don't see why this is reported.
I am not being warned about dirty files in the top level repository