$ git clone -n https://github.com/xcp-ng-rpms/devtoolset-11-gdb.git /var/lib/mock/v8.3-base-3901-3837/root/chroot_tmpdir/scmroot/devtoolset-11-gdb
Cloning into '/var/lib/mock/v8.3-base-3901-3837/root/chroot_tmpdir/scmroot/devtoolset-11-gdb'...
$ git reset --hard e2721e05287dfc20310d54198950a6441b8ad94e
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HEAD is now at e2721e0 Don't build HTML and PDF manuals