Git for Windows SDK 1.0.1 error key could not be looked up remotely

[musm]

I keep getting this error when trying to install the sdk:

error: git-for-windows: key "BB3AA74136C569BB" is unknown
error: key "BB3AA74136C569BB" could not be looked up remotely
:: Synchronizing package databases...
 git-for-windows              1996.0   B  0.00B/s 00:00 [############################] 100%
 git-for-windows.sig           543.0   B   530K/s 00:00 [############################] 100%
error: git-for-windows: key "BB3AA74136C569BB" is unknown
error: key "BB3AA74136C569BB" could not be looked up remotely
error: failed to update git-for-windows (invalid or corrupted database (PGP signature))
 mingw32 is up to date
 mingw64 is up to date
 msys is up to date
error: database 'git-for-windows' is not valid (invalid or corrupted database (PGP signature))

There was a problem accessing the MSys2 repositories
If your setup requires an HTTP proxy to access the web,
please specify it here, otherwise leave it empty.

HTTP proxy:

[kjeremy]

I think I'm seeing the same issue manifested in a different way:

$ update-core
==> Update package databases...
error: git-for-windows: key "BB3AA74136C569BB" is unknown
:: Import PGP key 4096R/3B6D86A1BA7701CD0F23AED888138B9E1A9F3986, "Johannes Schindelin <johannes.schindelin@gmx.de>", created: 2013-09-13? [Y/n]

[dscho]

Unfortunately, this problem was incurred by trying to address part of #456.

@elieux any idea what to do about this mess?

[elieux]

@dscho, see #456.

[dscho]

@mmoh @kjeremy I removed the signatures for now. Could you please test again?

[dscho]

I went ahead and tested this myself.

[kjeremy]

Just tested. Works for me.

On Mon, Oct 5, 2015 at 9:46 AM, Johannes Schindelin <
notifications@github.com> wrote:

I went ahead and tested this myself.

—
Reply to this email directly or view it on GitHub
#465 (comment)
.

[musm]

Thanks, now works.

Unrelated question if :

The POSIX emulation layer of MSys2 binaries is convenient, but comes at a cost: Typically, MSys2 
programs are noticeably slower than their MinGW counterparts (if there are such counterparts). As a 
consequence, the Git for Windows project tries to provide as many components as possible as MinGW 
binaries.

why is the gcc built with posix threads? Can I change to win32 threads if so how?

Finally, it which of the shells should I default to mingw64_shell.bat or msys2_shell.bat? It looks like msys2_shell doesn't load gcc by default. Also this dev package doesn't create any user files in the /home/mmoh directory, is this intended behavior? Nor does it create a default .bashrc file in /c/users/mmoh/ directory.