wp patch create does not always count up

[sun]

Problem

• If e.g. the first patch file for a plugin (0001) has been removed but there are further patch files (0002, 0003, …), then a new patch created with wp patch create gets some number (e.g. 0001 or 0003) instead of the expected highest + 1.

Expectation

• Patch files are numbered sequentially. Always currently highest number + 1.
• Only exception is when files no longer exist in the filesystem. The package is not supposed to track history.