$ git clone -n https://github.com/fedora-riscv/filesystem.git /var/lib/mock/f42-build-3222390-41065/root/chroot_tmpdir/scmroot/filesystem
Cloning into '/var/lib/mock/f42-build-3222390-41065/root/chroot_tmpdir/scmroot/filesystem'...
$ git fetch origin dd986f65f258b9cf2aa4189c610521510473b2cd:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/filesystem
 * [new ref]         dd986f65f258b9cf2aa4189c610521510473b2cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd986f6 Merge remote-tracking branch 'up/main' into main-riscv64