$ git clone -n https://github.com/xcp-ng-rpms/strace.git /var/lib/mock/v8.1-base-1823-1252/root/chroot_tmpdir/scmroot/strace
Cloning into '/var/lib/mock/v8.1-base-1823-1252/root/chroot_tmpdir/scmroot/strace'...
$ git reset --hard c5e9fa748609414722d9c24471d18d4992cd948a
Downloading SOURCES/strace-4.9.tar.gz (517 KB)
Checking out files:  44% (8/18)   
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Checking out files: 100% (18/18)   
Checking out files: 100% (18/18), done.
HEAD is now at c5e9fa7 Merge branch 'XS-8.1'