Masking makes embedded images disappear on pdf export

Summary:

Certain clips and masks are ignored or incorrectly applied when exported to PDF.

Steps to reproduce:

• Exporting Clipmask_1.svg as a PDF (Clipmask_1.pdf), a mask is improperly applied to the image.
• Exporting Clipmask_2.svg as a PDF (Clipmask_2.pdf), a clip is improperly applied to the image.

Version info

Inkscape 1.1.2 (b8e25be833, 2022-02-05)

    GLib version:     2.70.3
    GTK version:      3.24.31
    glibmm version:   2.66.2
    gtkmm version:    3.24.5
    libxml2 version:  2.9.12
    libxslt version:  1.1.34
    Cairo version:    1.17.4
    Pango version:    1.50.3
    HarfBuzz version: 3.3.2
    Poppler version:  22.01.0

    OS version:       Windows 10 21H1