$ git clone -n https://src.fedoraproject.org/rpms/kf5-calendarsupport.git /var/lib/mock/f38-build-729629-101821/root/chroot_tmpdir/scmroot/kf5-calendarsupport
Cloning into '/var/lib/mock/f38-build-729629-101821/root/chroot_tmpdir/scmroot/kf5-calendarsupport'...
$ git fetch origin 1b30c9806874b57eea342651b103fe0772a80a0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-calendarsupport
 * [new ref]         1b30c9806874b57eea342651b103fe0772a80a0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b30c98 23.04.2