Hi! If there are colons in the beginning of a patch subject line `git-am' will drop them. Consider the following patch: $ cat 0001-four-colons-prepended.patch From e8213a2d10a61c9dc75521d88d656b8d5330e6bb Mon Sep 17 00:00:00 2001 From: Max Filenko <contact@xxxxxxxxxx> Date: Tue, 12 Feb 2019 12:21:21 +0100 Subject: [PATCH] :::: four colons prepended --- file.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/file.txt b/file.txt index 4dd1ef7..b5da95d 100644 --- a/file.txt +++ b/file.txt @@ -1 +1 @@ -This is a file. +This is a plain text file. -- 2.17.1 There will be no colons in the beginning of a commit message if I apply this patch: $ git am 0001-four-colons-prepended.patch Applying: four colons prepended The four colons already gone in the log message above. There are neither no colons in the commit subject line: $ git show commit 6341a6a2872f850ecb376c268b1b3bae54a6a74f (HEAD -> master) Author: Max Filenko <contact@xxxxxxxxxx> Date: Tue Feb 12 12:21:21 2019 +0100 four colons prepended diff --git a/file.txt b/file.txt index 4dd1ef7..b5da95d 100644 --- a/file.txt +++ b/file.txt @@ -1 +1 @@ -This is a file. +This is a plain text file. I was able to reproduce this with git 2.17.1 on Ubuntu 18.04.2 LTS as well as with git 2.17.2 (Apple Git-113) on macOS 10.14.3. I was able to trace this down to <builtin/am.c>. It seems like there are no colons already in the `state->msg' which to my understanding is being filled by `read_commit_msg()' function. I would really appreciate a hand on debugging it further. I'm re-submitting this bug report because the original one [1] wasn't really noticed. Hopefully, it's just because I've missed the proper prefix in my email's subject line :) [1]: http://public-inbox.org/git/m2lg2lxmmm.fsf@bouncer.i-did-not-set--mail-host-address--so-tickle-me/ -- Best, Max