$ git clone -n https://src.fedoraproject.org/rpms/rust-x11-dl.git /var/lib/mock/f40-build-2084353-50006/root/chroot_tmpdir/scmroot/rust-x11-dl
Cloning into '/var/lib/mock/f40-build-2084353-50006/root/chroot_tmpdir/scmroot/rust-x11-dl'...
$ git fetch origin a2fa60af0850370b741c32e79bdfe1334da87c9a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-x11-dl
 * [new ref]         a2fa60af0850370b741c32e79bdfe1334da87c9a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2fa60a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild