$ git clone -n https://src.fedoraproject.org/rpms/perftest.git /var/lib/mock/f40-build-2301238-56769/root/chroot_tmpdir/scmroot/perftest
Cloning into '/var/lib/mock/f40-build-2301238-56769/root/chroot_tmpdir/scmroot/perftest'...
$ git fetch origin f8e1106923b3c9fe4128284e3dc2ac67a56c4e13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perftest
 * [new ref]         f8e1106923b3c9fe4128284e3dc2ac67a56c4e13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8e1106 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild