$ git clone -n https://src.fedoraproject.org/rpms/rust-tokio-io.git /var/lib/mock/f38-build-side-43-rust-devel-1415718-31455/root/chroot_tmpdir/scmroot/rust-tokio-io
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1415718-31455/root/chroot_tmpdir/scmroot/rust-tokio-io'...
$ git fetch origin 55eac2d110a88b6452666cfcb2c3ba153bec82ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tokio-io
 * [new ref]         55eac2d110a88b6452666cfcb2c3ba153bec82ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55eac2d Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild