$ git clone -n https://src.fedoraproject.org/rpms/msoffcrypto-tool.git /var/lib/mock/f42-build-side-1-3499005-45964/root/chroot_tmpdir/scmroot/msoffcrypto-tool
Cloning into '/var/lib/mock/f42-build-side-1-3499005-45964/root/chroot_tmpdir/scmroot/msoffcrypto-tool'...
$ git fetch origin a0c7dbb89319dbe5c1d458e116209a85930d0212:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/msoffcrypto-tool
 * [new ref]         a0c7dbb89319dbe5c1d458e116209a85930d0212 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0c7dbb update to version 5.4.2