Comment 4 for bug 1800321

TITLE: Site admin cannot add Inst tags to block content on inst page

BUG SUMMARY:
1) When a Site admin creates an Institution page, they are able to select all of the Institution tags that have been created.
2) When Site admin adds content blocks to a page, they are only able to select tags that have been used when they created a the site page

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Environment tested: Master
Browser tested: Chrome

PRECONDITIONS:
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1) The following Institutions exist
a) Institution One
b) Institution Two
2) Institution Tags are enabled (found on inst settings page) for both Institutions
3) The following Institution tags for Institution One exist
a) Institution One: Inst1tag - created by Inst admin for Inst One
b) Institution One: INST-ONE - created by Inst admin for Inst One
c) Institution One: SA-INST1 - created by Site admin for Inst One
4) Institution tag " Inst2tag" for Institution Two exists
5) Inst admin for Institution One exists

TEST STEPS:
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1) Log in as Site admin
2) create an institution page for Institution One
3) Verify that all Inst tags for Inst One are able to be selected ✔
4) Select the top one in the list of Inst tags field and save page
5) Add a text block on the page

Expected Result: All of the institution tags should be available to be selected in the tags field for the text block

Actual Result: Only one tag was able to be selected - (the same tag I used when I created the page)