bug#61631: 29.0.60; The indentation of switch case is broken on typescript-ts-mode and tsx-ts-mode

[Theodor Thornhill via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

On 19 February 2023 14:24:30 CET, Eason Huang <aqua0210@foxmail.com> wrote:
>Hello Theodor and Emacs dev team,
>
>Recently I found that the indentation is broken in typescript-ts-mode
>and tsx-ts-mode. When I press RET (M-x newline) after the ':' in the
>case clause, it will always indent to the the same position of previouse line.
>
>For example:
>In typescript-ts-mode and tsx-ts-mode will get this result as below:
>
>```
>let day: number = 1;
>
>switch (day) {
>case 0:
>console.log("It is a Sunday.");
>break;
>case 1:
>console.log("It is a Monday.");
>break;
>default:
>console.log("No such day exists!");
>break;
>}
>```
>expected:
>
>```
>let day: number = 1;
>
>switch (day) {
>case 0:
>  console.log("It is a Sunday.");
>  break;
>case 1:
>  console.log("It is a Monday.");
>  break;
>default:
>  console.log("No such day exists!");
>break;
>}
>```
>
>steps to reprodue:
>
>1. start emacs with `emacs -Q`
>2. C-x C-f ~/test.tsx to open a test.tsx
>3. M-x typescript-ts-mode
>4. input the exmaple code mentioned above
>5. you will see the result.
>
>--


Great, thanks! I'll fix it tonight, unless you want to devise a patch yourself?

Theo