since diffs are often enclosed in other formats (e.g. emails) we might parse something and think it's a blob id when it's not. This should already happens, but apply_patch is looking for the wrong error due to a leftover from previous attempts. Reported by stsp@ while here tweak the test_patch_merge_unknown_blob to also try with a dummy commit id, as now got-read-patch requires it in order to consider a blob id. ok stsp@

if the child view is fullscreen we don't need to subtract one, because no vborder is drawn. ok Mark Jamsek

ok op@, Mark Jamsek

When cycling from a child view in fullscreen, the parent view is opened in a splitscreen with no border instead of fullscreen. Check the view mode when cycling between views and resize parent dimensions accordingly. ok op@

Suggested by naddy. Remap 'f'ullscreen to 'F', and blame view key maps 'b' and 'B' to 'c' and 'C', respectively, per stsp's and naddy's suggestion. While here, remove trailing whitespace. ok naddy@

suggested by and ok stsp@

Parse the "blob -" metadata in diffs produced by 'got diff' and use the original file for patching. Then, use the diff3 with the current version of the file to merge the differences. This solves many failures automagically or at least turns them into a conflict. ok/improvements stsp@

future work with diff3 merge will need the fully patched file even in the nop mode ok stsp@

ok stsp@

Patch by Mikhail ok op@ jamsek