[CP] Fix assertion when a WidgetSpan is scaled by certain textScaleFactor values #131004
Description
Issue Link
Commit Hash
Target
beta
PR Link
Changelog Description
Apps that use WidgetSpans in text widgets may throw an assertion when the text scale factor is set to certain values.
Impacted Users
WidgetSpan users
Impact Description
Apps that use WidgetSpans in text widgets may throw an assertion when the text scale factor is set to certain values, due to floating point precision.
Workaround
No easy workaround available
Risk
low
Test Coverage
yes
Validation Steps
Follow the repro steps in #130588, or run this test: https://github.com/flutter/flutter/pull/130648/files#diff-9fccc94ba0e90a5fb4c5b90761fe59995a5cf7bad0d580c6c2ff3cceafb495e5