[bug report] git-gui child windows are blank

>
> v2.19.2, installed from brew on macOS Mojave 14.2.1.
>
> `git-gui` is my much beloved go-to tool for everything git.
> Unfortunately, on my new Macbook Air it seems to have a bug. When I
> first load the program, the parent window populates normally with the
> stage/unstaged and diff panes. However, when I click Push, the child
> window is completely blank. The frame is there, but there is no
> content.
>
> This same behavior is seen if I do a `git gui blame`, where the
> primary blame window opens normally but all the children windows are
> empty.
>
> I have googled but was unsuccessful in finding a solution. Is this a
> known issue?

> On Wed, Nov 28, 2018 at 6:13 AM Kenn Sebesta <kenn@eissq.com> wrote:
> > v2.19.2, installed from brew on macOS Mojave 14.2.1.
> >
> > `git-gui` is my much beloved go-to tool for everything git.
> > Unfortunately, on my new Macbook Air it seems to have a bug. When I
> > first load the program, the parent window populates normally with the
> > stage/unstaged and diff panes. However, when I click Push, the child
> > window is completely blank. The frame is there, but there is no
> > content.
>
> Looking through the mailing list archive, this
> seemed to be one of the last relevant messges
> https://public-inbox.org/git/20180724065120.7664-1-sunshine@sunshineco.com/

>
> On Wed, Nov 28, 2018 at 2:29 PM Stefan Beller <sbeller@google.com> wrote:
> > On Wed, Nov 28, 2018 at 6:13 AM Kenn Sebesta <kenn@eissq.com> wrote:
> > > v2.19.2, installed from brew on macOS Mojave 14.2.1.
> > >
> > > `git-gui` is my much beloved go-to tool for everything git.
> > > Unfortunately, on my new Macbook Air it seems to have a bug. When I
> > > first load the program, the parent window populates normally with the
> > > stage/unstaged and diff panes. However, when I click Push, the child
> > > window is completely blank. The frame is there, but there is no
> > > content.
> >
> > Looking through the mailing list archive, this
> > seemed to be one of the last relevant messges
> > https://public-inbox.org/git/20180724065120.7664-1-sunshine@sunshineco.com/
>
> I was hoping that Junio would patch-monkey that one since that
> crash-at-launch makes gitk unusable for Mojave users, but apparently
> it never got picked up.
>
> Anyhow, the issue fixed by that patch has to do with 'osascript' on
> Apple, and it's the only such invocation in the source code of
> gitk/git-gui. The 'osascript' invocation merely attempts to foreground
> the application at launch, so is almost certainly unrelated to the
> above reported behavior. Somebody running Mojave will likely need to
> spend some time debugging it. (Unfortunately, I'm a couple major
> releases behind and don't plan on upgrading.)