Cache restore not working for glob paths

[sqsp-rwatkins]

Describe the bug
When using glob paths on the mount value for directories, those directories aren't restored on subsequent pipeline runs

To Reproduce
Steps to reproduce the behavior:

1. Using the following config

image: meltwater/drone-cache
settings:
  backend: gcs
  cache_key: [REDACTED]/{{ checksum "yarn.lock" }}
  json_key: [REDACTED]
  bucket: [REDACTED]
  region: [REDACTED]
  mount:
    - 'packages/app/node_modules'
    - 'packages/backend/node_modules'
    - 'node_modules'
    - 'plugins/**/node_modules'

2. Use restore: true for the restore step and rebuild: true for the rebuild step

Expected behavior
All paths in plugins/**/node_modules will be restored on a subsequent pipeline run after the cache has been created/rebuilt

Update cache
The logs for the step that updates the cache indicate that the folders in the glob paths were successfully updated:

level=info name=drone-cache ts=2023-03-15T16:54:51.236145545Z caller=rebuilder.go:73 component=plugin component=rebuilder msg="rebuilding cache for directory" local=plugins/sqsp-annotations/node_modules remote=backstage/backstage/npm-modules/6278771a12b52f4d36aa67eff9bd2067/plugins/sqsp-annotations/node_modules
level=info name=drone-cache ts=2023-03-15T16:54:51.236157985Z caller=rebuilder.go:73 component=plugin component=rebuilder msg="rebuilding cache for directory" local=plugins/sqsp-drone/node_modules remote=backstage/backstage/npm-modules/6278771a12b52f4d36aa67eff9bd2067/plugins/sqsp-drone/node_modules
level=info name=drone-cache ts=2023-03-15T16:54:51.236176605Z caller=rebuilder.go:73 component=plugin component=rebuilder msg="rebuilding cache for directory" local=plugins/sqsp-github/node_modules remote=backstage/backstage/npm-modules/6278771a12b52f4d36aa67eff9bd2067/plugins/sqsp-github/node_modules

Restore cache
The logs for the step that restores the cache on a subsequent pipeline run do not contain any references to paths in plugins/**/node_modules. They only contain references to non glob paths included in the mount list.

Description
I have written a script that runs in a step following on from the restore cache step. It produces the following output:

'./plugins/sqsp-annotations/node_modules' not found, cannot restore from cache
'./plugins/sqsp-drone/node_modules' not found, cannot restore from cache
'./plugins/sqsp-github/node_modules' not found, cannot restore from cache

I have checked that indeed all paths in plugins/**/node_modules were not restored. This isn't an issue if I manually specify all paths in plugins/**/node_modules

Desktop (please complete the following information):
NA using drone with meltwater/drone-cache

[Rossbro2]

Same here 😞