$ git clone -n https://src.fedoraproject.org/rpms/rust-sys-info.git /var/lib/mock/f42-build-3267376-41262/root/chroot_tmpdir/scmroot/rust-sys-info
Cloning into '/var/lib/mock/f42-build-3267376-41262/root/chroot_tmpdir/scmroot/rust-sys-info'...
$ git fetch origin 4aa143b1c69390fcf9dbe0823a76f55f87fd694a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sys-info
 * [new ref]         4aa143b1c69390fcf9dbe0823a76f55f87fd694a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4aa143b Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild