Import PDF missing letter

Summary:

When I import a PDF (attached) into Inkscape (reproducible with blank file). Letter 'i' missing in two text boxes.

Steps to reproduce:

• open Inkscape
• import attached PDF by dragging the file into the inkscape window

What happened?

Imported text boxes "fixed" showing as "f xed", missing letter 'i'. Check raw svg file, the text box is imported as "fxed" (no space), but adding 'i' does not fix it, showing wrong format.

What should have happened?

Import text with right letters 'fixed' and format

Sample attachments:

bug_report_fixProf_carryingChi2.pdf

Version Info:

- Inkscape Version:
    Inkscape 1.0 (4035a4f, 2020-05-01)
    Pango version: 1.43.0
- Operating System: macOS
- Operating System version: 10.15.5