Lost commit during rebase!

I have a local-only branch with just under 70 commits. I also have merge commits on this branch.

The log of the top few commits on my branch looks like so:

* de651ff       (20 minutes ago) (HEAD, survey) Robert Dailey - WIP:
GOTO implementation
* 2a68a23       (21 minutes ago) Robert Dailey - Move boost::phoenix
include & namespace changes to own header file
* e1cd568       (19 hours ago) Robert Dailey - WIP: GOTO flow changes
* b039bb5       (19 hours ago) Robert Dailey - Remove superfluous
include of own header
* 4bdeb27       (20 hours ago) Robert Dailey - Rename NavigateBackwards()

I had two commits that I wanted to squash and also reorder another one. The command I ran is:

git rebase -pi `git merge-base origin/master survey`

I ran this command with 'survey' branch checked out. Once my editor appears, the last few commits in the file look like so:

pick 4bdeb27 Rename NavigateBackwards() pick b039bb5 Remove superfluous include of own header pick e1cd568 WIP: GOTO flow changes pick 2a68a23 Move boost::phoenix include & namespace changes to own header file pick de651ff WIP: GOTO implementation

I modify the last 3 commits in the file so now it looks like this:

pick 4bdeb27 Rename NavigateBackwards() pick b039bb5 Remove superfluous include of own header pick 2a68a23 Move boost::phoenix include & namespace changes to own header file pick e1cd568 WIP: GOTO flow changes squash de651ff WIP: GOTO implementation

What I did was:

1. Move 2a68a23 back one commit
2. Mark de651ff for squash

After this, I save the file, close, and rebase operations begin. After the rebase is done, my log looks like this:

* 94d06df       (19 hours ago) (HEAD, survey) Robert Dailey - WIP:
GOTO flow changes
* b039bb5       (19 hours ago) Robert Dailey - Remove superfluous
include of own header
* 4bdeb27       (20 hours ago) Robert Dailey - Rename NavigateBackwards()

Notice that the commit with description "Move boost::phoenix include & namespace changes to own header file" is missing! I looked at reflog:

$ git reflog 94d06df HEAD@{0}: rebase -i (finish): returning to refs/heads/survey 94d06df HEAD@{1}: rebase -i (squash): WIP: GOTO flow changes e1cd568 HEAD@{2}: rebase -i (pick): updating HEAD 2a7b27a HEAD@{3}: rebase -i (pick): Move boost::phoenix include & namespace changes to own header file b039bb5 HEAD@{4}: rebase -i (pick): updating HEAD 4bdeb27 HEAD@{5}: rebase -i (pick): updating HEAD 2e40bcd HEAD@{6}: rebase -i (pick): updating HEAD 3ca6bb3 HEAD@{7}: rebase -i (pick): updating HEAD e63b1e5 HEAD@{8}: rebase -i (pick): updating HEAD 4d40c00 HEAD@{9}: rebase -i (pick): updating HEAD ec078c1 HEAD@{10}: rebase -i (pick): updating HEAD de48c5d HEAD@{11}: rebase -i (pick): updating HEAD

It shows that it "picked" the commit that's missing now. Is this a bug or am I not doing something right? I'm using Git for Windows version 1.9.0