$ git clone -n https://src.fedoraproject.org/rpms/fastnetmon.git /var/lib/mock/f39-build-1835745-41919/root/chroot_tmpdir/scmroot/fastnetmon
Cloning into '/var/lib/mock/f39-build-1835745-41919/root/chroot_tmpdir/scmroot/fastnetmon'...
$ git fetch origin 9d5e2e78095a8aafe797146d010e5347ccfc3d3b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fastnetmon
 * [new ref]         9d5e2e78095a8aafe797146d010e5347ccfc3d3b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d5e2e7 Rebuilt for abseil-cpp 20230802.0 (with capnproto 1.0.1 too!)