Page Properties Report columns with same name are listed separately or not showing

Symptoms:
On the Page Properties Report macro either:

A) Content is missing:

B) Columns are duplicated:

Cause:
When manually modifying a Page Properties table, a hidden tag (like <p> or <span>) might be present in the field text, making fields with same text be treated as different. This also makes impossible to list a column by it's name.

See the differences in the Storage Format of:

<ac:structured-macro ac:name="details"><ac:rich-text-body>
<table><tbody><tr>
<td><p>Priority</p></td>
....
</tr>
<tr>
<td><span>Status</span></td>
....

vs

<ac:structured-macro ac:name="details"><ac:rich-text-body>
<table><tbody><tr>
<td>Priority</td>
....
</tr>
<tr>
<td>Status</td>
...

So:

• in A) there is a Column Filter applied (Status, Priority) but the Report doesn't find those Columns in "Project Page 3 <SPAN>" because those fields have other characters in it.
• in B) the columns are listed separately because although they look the same, they are different to the Report macro.

Expected:

• Special tags to be ignored. If rows look the same, to be treated like the same.

Steps to reproduce:
To get the <p> or <span> values in the table you have to:

1. Write two lines of text anywhere on the page
2. Copy the lines inside the table
   Editing the field names from now on, will keep the <p> or <span> value on them.

Workaround:

• Remove the table's row and create it again, for every row with the problem.