$ git clone -n https://src.fedoraproject.org/rpms/picmi.git /var/lib/mock/f40-build-1845019-24973/root/chroot_tmpdir/scmroot/picmi
Cloning into '/var/lib/mock/f40-build-1845019-24973/root/chroot_tmpdir/scmroot/picmi'...
$ git fetch origin 300b9605ce2e6a9eaf282071124827acd9bcfff4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/picmi
 * [new ref]         300b9605ce2e6a9eaf282071124827acd9bcfff4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 300b960 24.05.2