$ git clone -n https://src.fedoraproject.org/rpms/kf5-kcalendarutils.git /var/lib/mock/f42-build-880263-182709/root/chroot_tmpdir/scmroot/kf5-kcalendarutils
Cloning into '/var/lib/mock/f42-build-880263-182709/root/chroot_tmpdir/scmroot/kf5-kcalendarutils'...
$ git fetch origin ffe15eaae00f2a2687eafbd750c27a5b06cfa89f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kcalendarutils
 * [new ref]         ffe15eaae00f2a2687eafbd750c27a5b06cfa89f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffe15ea Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild