$ git clone -n https://src.fedoraproject.org/rpms/rust-chainerror.git /var/lib/mock/f41-build-side-1-2769239-32104/root/chroot_tmpdir/scmroot/rust-chainerror
Cloning into '/var/lib/mock/f41-build-side-1-2769239-32104/root/chroot_tmpdir/scmroot/rust-chainerror'...
$ git fetch origin b86a07068a660e5600526bc53a2689286f8572af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-chainerror
 * [new ref]         b86a07068a660e5600526bc53a2689286f8572af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b86a070 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild