Export does not work when the Import folder does not exist

[rlacatus]

When running firebase emulators:start --import <target folder> --export-on-exit and the <target folder> does not exist, the export does not occur.

Expected behavior

When running the emulator with a target folder for import flag that does not exist and an export-on-exit flag, the export functionality creates the folder structure and performs the export.

Actual behavior

The export does not get performed.

[yuchenshi]

Hi, thanks for filing this issue! We are unable to promise any timeline for this, but if others also have this issue, adding a +1 on this issue can help us prioritize adding this to the roadmap.

(Googler-only internal tracking bug: b/240330244)