Update MultiContainer cache key

[TruongQuangSB]

• The GUID of Inital and Final Container can be same -> the cache key from GUID isn't unique

[github-actions]

Test Results

100 tests   - 31   96 ✅  - 35   8s ⏱️ -19s
 25 suites  -  6    0 💤 ± 0 
 25 files    -  6    4 ❌ + 4 

For more details on these failures, see this check.

Results for commit 0e943c3. ± Comparison against base commit 7af8487.

This pull request removes 40 and adds 9 tests. Note that renamed tests count towards both.

org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[1] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@68868328
org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[2] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@544e8149
org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[3] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@f6de586
org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[4] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@7c847072
org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[5] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@23f86d8a
org.eclipse.set.core.SetSessionServiceTest ‑ testGetFormat
org.eclipse.set.core.SetSessionServiceTest ‑ testGetInitializationFormat
org.eclipse.set.core.SetSessionServiceTest ‑ testGetMergedFileFormat
org.eclipse.set.core.SetSessionServiceTest ‑ testGetPlainPlanProFormat
org.eclipse.set.core.SetSessionServiceTest ‑ testGetZippedPlanProFormat
…

org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[1] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@38eb0f4d
org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[2] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@74ea46e2
org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[3] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@77bb48d5
org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[4] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@12d5c30e
org.eclipse.set.basis.graph.DigraphsTest ‑ testGetPathsDigraphPP(TestGetPathsDigraphPP)[5] org.eclipse.set.basis.graph.DigraphsTest$TestGetPathsDigraphPP@26586b74
org.eclipse.set.ppmodel.extensions.utils.CacheUtilsTest ‑ testGetCacheKey(TestData)[1] TestData [input=org.eclipse.set.model.planpro.Weichen_und_Gleissperren.impl.W_Kr_Gsp_ElementImpl@18a0721b, expected=multi/container-id/element-id]
org.eclipse.set.ppmodel.extensions.utils.CacheUtilsTest ‑ testGetCacheKey(TestData)[2] TestData [input=org.eclipse.set.model.planpro.Signale.impl.SignalImpl@4d8f2cfd, expected=multi/456/123]
org.eclipse.set.ppmodel.extensions.utils.CacheUtilsTest ‑ testGetCacheKeyOther(TestData)[1] TestData [input=Pair [first=org.eclipse.set.model.planpro.Weichen_und_Gleissperren.impl.W_Kr_Gsp_ElementImpl@6d9428f3, second=other], expected=multi/container-id/element-id/other=other]
org.eclipse.set.ppmodel.extensions.utils.CacheUtilsTest ‑ testGetCacheKeyOther(TestData)[2] TestData [input=Pair [first=org.eclipse.set.model.planpro.Signale.impl.SignalImpl@97beeaf, second=xxx], expected=multi/456/123/other=xxx]