$ git clone -n https://src.fedoraproject.org/rpms/swtpm.git /var/lib/mock/f41-build-856361-167570/root/chroot_tmpdir/scmroot/swtpm
Cloning into '/var/lib/mock/f41-build-856361-167570/root/chroot_tmpdir/scmroot/swtpm'...
$ git fetch origin 8a792dfbd416b3e02df9a50eba75a0057e3ab76a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/swtpm
 * [new ref]         8a792dfbd416b3e02df9a50eba75a0057e3ab76a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a792df Add rules for SELinux policy to allow appending to log (BZ 2306817)