## Summary
When a custom object is renamed after creation, the relation fields on
`noteTarget`, `taskTarget`, `attachment`, and `timelineActivity` keep
their old names but point to the renamed object.
For example:
- User creates custom object `solution`
- System creates field `solution` on NoteTarget → pointing to Solution
- User renames object from `solution` to `productCatalog`
- Field name stays as `solution` but points to `productCatalog`
- Migration runs: `solution` → `targetSolution`
- Now `targetSolution` points to `productCatalog` ❌
This causes the morph name computation to fail:
- `getMorphNameFromMorphFieldMetadataName("targetSolution",
"productCatalog")`
- Tries to remove `ProductCatalog` from `targetSolution` → no match
- Name stays as `targetSolution` instead of becoming `target`
- Frontend computes: `targetSolution` + `Company` =
`targetSolutionCompany` 💥
## The Fix
This command finds and fixes all such mismatches by:
1. Finding MORPH_RELATION fields where `field.name !=
target${capitalize(targetObject.nameSingular)}`
2. Renaming the column in the workspace schema
3. Updating the field metadata (name + joinColumnName in settings)
4. Invalidating the cache
## Usage
**Dry run (to see what would be fixed):**
```bash
npx nx run twenty-server:command upgrade:1-17:fix-morph-relation-field-names -- --workspace-id <id> --dry-run
```
**Fix a specific workspace:**
```bash
npx nx run twenty-server:command upgrade:1-17:fix-morph-relation-field-names -- --workspace-id <id>
```
**Fix all workspaces:**
```bash
npx nx run twenty-server:command upgrade:1-17:fix-morph-relation-field-names
```
## SQL to find affected workspaces
```sql
SELECT
fm."workspaceId",
COUNT(*) AS mismatched_fields
FROM core."fieldMetadata" fm
JOIN core."objectMetadata" target_om ON fm."relationTargetObjectMetadataId" = target_om.id
JOIN core."objectMetadata" source_om ON fm."objectMetadataId" = source_om.id
WHERE fm.type = 'MORPH_RELATION'
AND fm.name LIKE 'target%'
AND source_om."nameSingular" IN ('noteTarget', 'taskTarget', 'attachment', 'timelineActivity')
GROUP BY fm."workspaceId"
HAVING COUNT(*) FILTER (
WHERE fm.name != 'target' || initcap(replace(target_om."nameSingular", '_', ''))
) > 0;
```
