Pull request #1221: PIPE-2113: get 'prefix' directly from imagename rather than miscinfo['filnam01'].
Merge in PIPE/pipeline from bugfix/PIPE-2113-no-images-are-shown-in-tclean-weblog to main
* commit 'a935f133fa4d94c8975c5b3173fad5c30f0fce21':
PIPE-2113: get 'prefix' directly from imagename rather than miscinfo['filnam01'].