patch 9.0.1078: with the +vartabs feature indent folding may use wrong 'ts' Commit: https://github.com/vim/vim/commit/07146ad1d33ba0d36b324873e5c461931e6b025e Author: zeertzjq <zeertzjq@outlook.com> Date: Mon Dec 19 15:51:44 2022 +0000 patch 9.0.1078: with the +vartabs feature indent folding may use wrong 'ts' Problem: With the +vartabs feature indent folding may use wrong 'tabstop'. Solution: Use the "buf" argument instead of "curbuf".

> +0&#ffffff0@74
|~+0#4040ff13&| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
| +0#0000000&@74