问对于从未在master上创建的文件，git stash pop会打印"deleted by us“

EN

user1:~/gittest$ ls
user1:~/gittest$ git init
Initialized empty Git repository in /home/user1/gittest/.git/

user1:~/gittest$ touch file1
user1:~/gittest$ git add file1
user1:~/gittest$ git commit -m "committing file1"
[master (root-commit) 7c29335] committing file1
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 file1

user1:~/gittest$ git checkout -b br1
Switched to a new branch 'br1'

user1:~/gittest$ touch file2
user1:~/gittest$ git add file2
user1:~/gittest$ git commit -m "committing file2"
[br1 b565401] committing file2
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 file2

user1:~/gittest$ echo "updated.." >> file2
user1:~/gittest$ git add file2 
user1:~/gittest$ git stash
Saved working directory and index state WIP on br1: b565401 committing file2
HEAD is now at b565401 committing file2

user1:~/gittest$ git checkout master
Switched to branch 'master'

user1:~/gittest$ git stash pop
CONFLICT (modify/delete): file2 deleted in Updated upstream and modified in Stashed changes. Version Stashed changes of file2 left in tree.

user1:~/gittest$ git status
On branch master
Unmerged paths:
  (use "git reset HEAD <file>..." to unstage)
  (use "git add/rm <file>..." as appropriate to mark resolution)

        deleted by us:   file2

no changes added to commit (use "git add" and/or "git commit -a")