$ git clone -n https://src.fedoraproject.org/rpms/simspark.git /var/lib/mock/f40-build-780819-131334/root/chroot_tmpdir/scmroot/simspark
Cloning into '/var/lib/mock/f40-build-780819-131334/root/chroot_tmpdir/scmroot/simspark'...
$ git fetch origin c8f61e0a9d4cfc6cd615216d9c46615f6e175bd7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/simspark
 * [new ref]         c8f61e0a9d4cfc6cd615216d9c46615f6e175bd7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8f61e0 Add additional header, fix FTBFS with g++14