Snapshot losing important Gitpod env vars

Bug description

When opening a Gitpod snapshot, the value of GITPOD_REPO_ROOT changes.
Original workspace:
GITPOD_REPO_ROOT=/workspace/<my_project_name>

After snapshot:
GITPOD_REPO_ROOT=/workspace

When I check it https://gitpod.io/workspaces
The bottom (original workspace) displays the correct repo it belongs to - https://github.com/gitpod-io/template-sveltejs
The top (snapshot of workspace) displays the wrong one - undefined

Steps to reproduce

1. Open any repo on Gitpod
2. Run in terminal printenv | grep GITPOD_REPO_ROOT
3. You should see /workspace/<your_repo_name>
4. Create a new snapshot
5. Open that snapshot.
6. Run in terminal printenv | grep GITPOD_REPO_ROOT
7. You would see that now it's only /workspace

Workspace affected

No response

Expected behavior

No response

Example repository

No response

Anything else?

This affects DrupalPod project, that uses this variable to make sure we're in the right directory of the project.

If this is helpful, there might be other unexpected changes to some of the variables?

I tested this with https://github.com/gitpod-io/template-sveltejs
Running printenv | grep GITPOD in terminal
Before snapshot:

GITPOD_REPO_ROOT=/workspace/template-sveltejs
GITPOD_ANALYTICS_WRITER=segment
GITPOD_OWNER_ID=2b35cc6b-508c-4438-9148-bb837856f556
GITPOD_WORKSPACE_ID=gitpodio-templatesvelte-cvhpl918bwn
GITPOD_INTERVAL=30000
GITPOD_CODE_HOST=https://gitpod.io
GITPOD_WORKSPACE_CONTEXT_URL=https://github.com/gitpod-io/template-sveltejs
GITPOD_INSTANCE_ID=8c795498-ad47-464b-86dc-875da0040e58
GITPOD_WORKSPACE_URL=https://gitpodio-templatesvelte-cvhpl918bwn.ws-us44.gitpod.io
GITPOD_THEIA_PORT=23000
GITPOD_WORKSPACE_CONTEXT={"isFile":false,"path":"","title":"gitpod-io/template-sveltejs - master","ref":"master","refType":"branch","revision":"a6c5701f2c70a3dd3f36bcf1c4bf6de995e9a4b4","repository":{"cloneUrl":"https://github.com/gitpod-io/template-sveltejs.git","host":"github.com","name":"template-sveltejs","owner":"gitpod-io","private":false,"fork":{"parent":{"cloneUrl":"https://github.com/sveltejs/template.git","host":"github.com","name":"template","owner":"sveltejs","private":false}}},"normalizedContextURL":"https://github.com/gitpod-io/template-sveltejs","checkoutLocation":"template-sveltejs","upstreamRemoteURI":"https://github.com/sveltejs/template.git","snapshotBucketId":"workspaces/black-manatee-4q9jme8u/snapshot-1640634946528943203.tar@gitpod-prod-user-cb603eaa-fff5-41a8-bfba-8786000cf0c7","prebuildWorkspaceId":"f2ed1095-bef2-49c8-b57a-8d3990ff9178","wasPrebuilt":true}
GITPOD_CLI_APITOKEN=zjsEoFwKBW466k3TNEZXoz5Q4o.QcHJG
GITPOD_WORKSPACE_CLUSTER_HOST=ws-us44.gitpod.io
GITPOD_GIT_USER_NAME=shaal
GITPOD_MEMORY=3435
GITPOD_ANALYTICS_SEGMENT_KEY=bUY8IRdJ42KjLOBS9LoIHMYFBD8rSzjU
GITPOD_HOST=https://gitpod.io
GITPOD_IDE_ALIAS=code
GITPOD_GIT_USER_EMAIL=oshaal@phase2technology.com
GITPOD_TASKS=[{"init":"npm install","command":"export CLIENT_URL=\"$(gp url 35729)/livereload.js?snipver=1&port=443\"\n{ gp await-port 5000 && sleep 5 && gp preview $(gp url 5000) & } &> /dev/null\ngp open src/App.svelte\nnpm run dev\n"}]

After snapshot:

GITPOD_REPO_ROOT=/workspace
GITPOD_ANALYTICS_WRITER=segment
GITPOD_OWNER_ID=2b35cc6b-508c-4438-9148-bb837856f556
GITPOD_WORKSPACE_ID=copper-warbler-d11opp8k9xq
GITPOD_INTERVAL=30000
GITPOD_CODE_HOST=https://gitpod.io
GITPOD_WORKSPACE_CONTEXT_URL=snapshot/b4a849d2-db15-4074-9c2c-7ce15b7c6971
GITPOD_INSTANCE_ID=a0d9c6e7-0938-4ea7-8a0f-b8cb0ea76625
GITPOD_WORKSPACE_URL=https://copper-warbler-d11opp8k9xq.ws-us44.gitpod.io
GITPOD_THEIA_PORT=23000
GITPOD_WORKSPACE_CONTEXT={"isFile":false,"path":"","title":"gitpod-io/template-sveltejs - master","ref":"master","refType":"branch","revision":"a6c5701f2c70a3dd3f36bcf1c4bf6de995e9a4b4","repository":{"cloneUrl":"https://github.com/gitpod-io/template-sveltejs.git","host":"github.com","name":"template-sveltejs","owner":"gitpod-io","private":false,"fork":{"parent":{"cloneUrl":"https://github.com/sveltejs/template.git","host":"github.com","name":"template","owner":"sveltejs","private":false}}},"normalizedContextURL":"snapshot/b4a849d2-db15-4074-9c2c-7ce15b7c6971","checkoutLocation":"template-sveltejs","upstreamRemoteURI":"https://github.com/sveltejs/template.git","snapshotBucketId":"workspaces/gitpodio-templatesvelte-cvhpl918bwn/snapshot-1651784911052196571.tar@gitpod-prod-user-2b35cc6b-508c-4438-9148-bb837856f556","prebuildWorkspaceId":"f2ed1095-bef2-49c8-b57a-8d3990ff9178","wasPrebuilt":true,"snapshotId":"b4a849d2-db15-4074-9c2c-7ce15b7c6971"}
GITPOD_CLI_APITOKEN=L61cmjb_V9Wl5PD0AZSbAxdP8rwn169r
GITPOD_WORKSPACE_CLUSTER_HOST=ws-us44.gitpod.io
GITPOD_GIT_USER_NAME=shaal
GITPOD_MEMORY=3435
GITPOD_ANALYTICS_SEGMENT_KEY=bUY8IRdJ42KjLOBS9LoIHMYFBD8rSzjU
GITPOD_HOST=https://gitpod.io
GITPOD_IDE_ALIAS=code
GITPOD_GIT_USER_EMAIL=oshaal@phase2technology.com
GITPOD_TASKS=[{"init":"npm install","command":"export CLIENT_URL=\"$(gp url 35729)/livereload.js?snipver=1&port=443\"\n{ gp await-port 5000 && sleep 5 && gp preview $(gp url 5000) & } &> /dev/null\ngp open src/App.svelte\nnpm run dev\n"}]

No source files or tests are named. Start by reproducing the snapshot workflow and comparing the listed environment variables before and after opening a snapshot; done means GITPOD_REPO_ROOT retains the repository path and the affected snapshot metadata remains correct.