Overview: "MARC bib" record cannot be opened after update of more than 1 linked "MARC authority" records via "Data import" (MARC authority records should become not eligible for control linked field).
Preconditions:

1. The job profile should be created: "Update MARC authority records by matching 999 ff $s subfield value".

2. Links to create between imported "MARC Authority" ( and ) and "MARC Bibliographic" ( ) records, description:
   The "100" MARC field with "$a" value "Beethoven, Ludwig van," of imported "Instance" record must be linked to the "100" field of imported "MARC Authority" record ("Robertson, Peter, 1950-2022 Inspector Banks series ;")
   The "240" MARC field with "$a" value "Variations," of imported "Instance" record must be linked to the "100" field of imported "MARC Authority" record ("Beethoven, Ludwig van, 1770-1827. Variations, piano, violin, cello, op. 44, E♭ major")

Steps to Reproduce:

1. Log into Snapshot FOLIO environment as User with following permissions:
   Data import: Can upload files, import, and view logs
   Inventory: All permissions
   MARC Authority: View MARC authority record
   quickMARC: View, edit MARC bibliographic record
   UI: Data export module is enabled

2. Go to "MARC authority" app in the new browser tab.

3. Export both "MARC authority" records which are linked with imported "MARC bib" record

4. Go to "Data export" app and download exported ".mrc" file.

5. Open exported ".mrc" file via "MarcEdit" (or similar app).

6. In a record without "$t" in "100" field, add "$t" to this field.
   For example, update field to:
   "=100  1\$aRobertson, Peter,$d1950-2022$cInspector Banks series$tTest"

7. In a record with "$t" in "100" field, remove "$t" from this field.
   For example, update field to:
   "=100  1\$aBeethoven, Ludwig van,$d1770-1827.$mpiano, violin, cello,$nop. 44,$rE♭ major"

8. Save the edited ".mrc" file

9. Go to the "Data import" app and upload saved ".mrc" file using created "Update MARC authority records by matching 999 ff $s subfield value" job profile.

10. Once import is complete, go to "Inventory" app and open imported "MARC bib" with linked fields, ex.:
    "Variations / Ludwig Van Beethoven."

11. Click on the "Actions" >> "Edit MARC bibliographic record.

Expected Results:

• Editing view of "MARC Bib" record is opened

• Fields linked in Preconditions are unlinked ("100", "240" - because "MARC authority" records are no longer eligible to control that fields)

Actual Results: 
On UI: "Record cannot be found or loaded." error is displayed
On Back-end: "240" field has "linkDetails"

Additional Information:
Following updates in "MARC authority" record could make this record not eligible to control linked fields of "MARC bib":
1) Authority 1XX number change:
2) Authority 1XX has removed or added a "$t" (only for 100 and 240 MARC bibs fields).

See attached screencast:

Dev notes: check logs of mod-entities-links, mod-source-record-storage, mod-inventory