$ git clone -n https://src.fedoraproject.org/rpms/akonadi-calendar-tools.git /var/lib/mock/f40-build-2260558-54412/root/chroot_tmpdir/scmroot/akonadi-calendar-tools
Cloning into '/var/lib/mock/f40-build-2260558-54412/root/chroot_tmpdir/scmroot/akonadi-calendar-tools'...
$ git fetch origin 4ec6f390c5c578515a97b90fc287dd37c654089f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/akonadi-calendar-tools
 * [new ref]         4ec6f390c5c578515a97b90fc287dd37c654089f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ec6f39 24.01.90