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https://github.com/docker/compose.git
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73ebbffb08
Without this I get an exception when building multiple images in a
compose run.
```
fatal error: concurrent map writes
goroutine 16 [running]:
github.com/docker/compose/v2/pkg/compose.(*composeService).build.func1({0x2cba4e0, 0xc00019b2c0}, {0xc000233150?, 0xd?})
github.com/docker/compose/v2/pkg/compose/build.go:95 +0x652
github.com/docker/compose/v2/pkg/compose.(*graphTraversal).run.func1()
github.com/docker/compose/v2/pkg/compose/dependencies.go:127 +0x63
golang.org/x/sync/errgroup.(*Group).Go.func1()
golang.org/x/sync@v0.1.0/errgroup/errgroup.go:75 +0x64
created by golang.org/x/sync/errgroup.(*Group).Go
golang.org/x/sync@v0.1.0/errgroup/errgroup.go:72 +0xa5
...
```
I'm not sure why the map is currently shared, but with this patch
applied my docker-compose build run works.
Signed-off-by: Edward Muller <emuller@fastly.com>