$ git clone -n https://src.fedoraproject.org/rpms/material-icons-fonts.git /var/lib/mock/f40-build-2211480-52220/root/chroot_tmpdir/scmroot/material-icons-fonts
Cloning into '/var/lib/mock/f40-build-2211480-52220/root/chroot_tmpdir/scmroot/material-icons-fonts'...
$ git fetch origin 617590105e7c7a72364ade1c760d916d065f1a94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/material-icons-fonts
 * [new ref]         617590105e7c7a72364ade1c760d916d065f1a94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6175901 Convert to %autorelease and %autochangelog