$ git clone -n https://src.fedoraproject.org/rpms/kernelshark.git /var/lib/mock/f45-build-14722-463/root/chroot_tmpdir/scmroot/kernelshark
Cloning into '/var/lib/mock/f45-build-14722-463/root/chroot_tmpdir/scmroot/kernelshark'...
$ git fetch origin da596992f048187a84cfb968232d3ecedbf2e8c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kernelshark
 * [new ref]         da596992f048187a84cfb968232d3ecedbf2e8c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da59699 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild