[Plugin: Contact Form 7] Issues with the letter “a” in form input names… very strange!

A form is rendering on a page, but there is a strange issue with the letter “a”… Note the input names:

<td>Fax Number:</td>
<td><span class="wpcf7-form-control-wrap f"><input name="f" value="" size="40" type="text"></span></td>
</tr>

<tr>
<td>Address:</td>
<td><span class="wpcf7-form-control-wrap ddress"><input name="ddress" value="" size="40" type="text"></span></td>
</tr>

And even the input box labels (by the way the input name should be “contactby[]” instead of “cont[]”)

<tr>
<td>Contact Me By:</td>
<td><span class="wpcf7-form-control-wrap cont"><span class="wpcf7-checkbox"><span class="wpcf7-list-item"><input name="cont[]" value="Phone" type="checkbox">&nbsp;<span class="wpcf7-list-item-label">Phone</span></span><span class="wpcf7-list-item"><input name="cont[]" value="F x" type="checkbox">&nbsp;<span class="wpcf7-list-item-label">F x</span></span><span class="wpcf7-list-item"><input name="cont[]" value="E-m il" type="checkbox">&nbsp;<span class="wpcf7-list-item-label">E-m il</span></span></span></span></td>
</tr>

Any insight on this? I think it might be a head-scratcher but I’d really like to use this plugin…