$ git clone -n https://src.fedoraproject.org/rpms/imaptest.git /var/lib/mock/f40-build-2004638-44976/root/chroot_tmpdir/scmroot/imaptest
Cloning into '/var/lib/mock/f40-build-2004638-44976/root/chroot_tmpdir/scmroot/imaptest'...
$ git fetch origin 9bdc1a26891753c34208e267d8b4e8e858801563:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/imaptest
 * [new ref]         9bdc1a26891753c34208e267d8b4e8e858801563 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9bdc1a2 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild