$ git clone -n https://src.fedoraproject.org/rpms/rust-threadpool.git /var/lib/mock/f40-build-2063996-49167/root/chroot_tmpdir/scmroot/rust-threadpool
Cloning into '/var/lib/mock/f40-build-2063996-49167/root/chroot_tmpdir/scmroot/rust-threadpool'...
$ git fetch origin f79229ba14ebaa5963447a7c94f85dfb9b2a8ef9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-threadpool
 * [new ref]         f79229ba14ebaa5963447a7c94f85dfb9b2a8ef9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f79229b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild