$ git clone -n https://src.fedoraproject.org/rpms/aerc.git /var/lib/mock/f40-build-2408883-60559/root/chroot_tmpdir/scmroot/aerc
Cloning into '/var/lib/mock/f40-build-2408883-60559/root/chroot_tmpdir/scmroot/aerc'...
$ git fetch origin a376476322b161216bd7bb72c1794b8168e2be0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/aerc
 * [new ref]         a376476322b161216bd7bb72c1794b8168e2be0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a376476 Rebuild for golang 1.22.0