Single commit --> patch is not annotated with PR header?

[larsxschneider]

I just created a PR with one commit:
git/git#237

SubmitGit shows me the PR message in the UI but resulting email looks like this:

From: Lars Schneider <larsxschneider@gmail.com>

Also change UK english "behaviour" to US english "behavior".

Signed-off-by: Lars Schneider <larsxschneider@gmail.com>

---
Documentation/SubmittingPatches | 80 ++++++++++++++++++++++++++++++++---------
1 file changed, 63 insertions(+), 17 deletions(-)

diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches
index 98fc4cc..60e0e55 100644
--- a/Documentation/SubmittingPatches
+++ b/Documentation/SubmittingPatches

...

------------------------------------------------
MUA specific hints


--
This is a preview - if you want to send this message for real, click here:
https://submitgit.herokuapp.com/git/git/pull/237/db2ee5760c9f5d54393ecaf70aec23bda5c6f410/e0c97993e3f89869d26e7eec04567edf9c06b400

I would expect:

From: Lars Schneider <larsxschneider@gmail.com>

Also change UK english "behaviour" to US english "behavior".

Signed-off-by: Lars Schneider <larsxschneider@gmail.com>

---

diff to v1:

remind the reader to check documentation set formatting
do not call Travis CI as "our infrastructure"
do not make it sound as we want to make everyone a GitHub customer
move detailed Travis CI instructions to a separate section (I thought about a separate file but I think there is not enough content at this point to justify it)
Thanks Junio, Stefan, and Matthieu for the review,
Lars

Documentation/SubmittingPatches | 80 ++++++++++++++++++++++++++++++++---------
1 file changed, 63 insertions(+), 17 deletions(-)

diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches
index 98fc4cc..60e0e55 100644
--- a/Documentation/SubmittingPatches
+++ b/Documentation/SubmittingPatches

...

------------------------------------------------
MUA specific hints


--
This is a preview - if you want to send this message for real, click here:
https://submitgit.herokuapp.com/git/git/pull/237/db2ee5760c9f5d54393ecaf70aec23bda5c6f410/e0c97993e3f89869d26e7eec04567edf9c06b400