Implement document load cancellation
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- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes fix#19309fix#21114fix#21113 (github issue number if applicable).
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Complete remaining algo update_the_image_data
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#11416.
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- [x] These changes do not require tests
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