Hello,
I've attached a screenshot for running `git help -a' that ends in a
hang and ~100% cpu usage, for the following ~/.gitconfig (it's also
attached):

https://raw.githubusercontent.com/agostonbarna/dotfiles-base/master/.gitconfig

So it's hangs on the alias `remote-origin-https-to-ssh'. One user in
following thread discovered, that it's about lenght of the alias:
"abcdefghijklmnopqr = ... is ok, but with abcdefghijklmnopqrs = ..."
it will crash, "the problem occurs if the name of a git alias consists
of more than 18 characters" (see the thread:
https://github.com/zdharma/fast-syntax-highlighting/issues/95).

Is there a workaround? Of course a fix is needed, but I'm interested
specifically in a workaround so my Zsh plugin
`fast-syntax-highlighting' can work without hang also with Git 2.20,
without exceptions in code.
-- 
Sebastian Gniazdowski
News: https://twitter.com/ZdharmaI
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Blog: http://zdharma.org