[TopGit] aborting tg create leafs deleted .top* files in index

Hi,

after executing the abort commands to remove a just created new topic branch, the .top* files from the previous branch are markes as deleted.

To reproduce:

$ md g
$ cd g
$ git --version
git version 1.6.1.rc4
$ git init
Initialized empty Git repository in /home/bertw/tmp/g/.git/
$ touch file
$ git add file
$ git commit -m init
[master (root-commit)]: created 2155efd: "init"
 0 files changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 file
$ tg create t/test1
tg: Automatically marking dependency on master
tg: Creating t/test1 base from master...
Switched to a new branch "t/test1"
tg: Topic branch t/test1 set up. Please fill .topmsg now and make
initial commit.
tg: To abort: git rm -f .top* && git checkout master && tg delete t/test1
$ git commit -m "topic test1"
[t/test1]: created 3cb4fbf: "topic test1"
 2 files changed, 7 insertions(+), 0 deletions(-)
 create mode 100644 .topdeps
 create mode 100644 .topmsg
$ tg create t/test2
tg: Automatically marking dependency on t/test1
tg: Creating t/test2 base from t/test1...
Switched to a new branch "t/test2"
tg: Topic branch t/test2 set up. Please fill .topmsg now and make
initial commit.
tg: To abort: git rm -f .top* && git checkout t/test1 && tg delete t/test2
$ git rm -f .top* && git checkout t/test1 && tg delete t/test2
rm '.topdeps'
rm '.topmsg'
D       .topdeps
D       .topmsg
Switched to branch "t/test1"
$ git status
# On branch t/test1
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#       deleted:    .topdeps
#       deleted:    .topmsg
#
$

Regards, Bert Wesarg