It is stated to be in response to Texas, but the amended constitution as far as I can see doesn’t use language about it being conditional on Texas’ plan happening.

In response to the congressional redistricting in Texas in 2025 (…) the single-member districts for Congress reflected in Assembly Bill 604 (…) shall temporarily be used for every congressional election for a term of office commencing on or after the date this subdivision becomes operative

It’s just that the legislature’s map shall be used for elections between the proposition’s passage and 2031’s regularly scheduled redistricting.

“Have they no refuge or resource?” cried Scrooge.
“Are there no prisons?” said the Spirit, turning on him for the last time with his own words. “Are there no workhouses?”