$ git clone -n https://github.com/xcp-ng-rpms/opam.git /var/lib/mock/v8.1-base-1713-1199/root/chroot_tmpdir/scmroot/opam
Cloning into '/var/lib/mock/v8.1-base-1713-1199/root/chroot_tmpdir/scmroot/opam'...
$ git reset --hard 603b3ab6f65e2cf88ae94e66338d6bd3a6a1403e
Downloading SOURCES/opam-full-2.0.0.tar.gz (7.8 MB)
HEAD is now at 603b3ab Add BuildRequires: gcc gcc-c++ to try to build with internal solver