Bugfixes, Etc. (#502)

* Fix: Jumping to renamed files (#484)

* fix: prevent "cursor position outside buffer" error

* fix: swap file_name and old_file_name in reviewer data

`old_file_name` is not set to the empty string for un-renamed files anymore, because then we can
remove the empty-line check in `comment_helpers.go` which was used to replace the empty string with
the current file name anyway.

* fix: add old_file_name to discussion root node data

* fix: also consider old_file_name when jumping to the reviewer

This fixes jumping to renamed files, however, may not work for comments that
were created on renamed files with the previous version of `gitlab.nvim` as
that version assigned the `file_name` and `old_file_name` incorrectly.

* refactor: don't shadow variable

* fix: check file_name or old_file_name based on which SHA comment belongs to

* Fix: Store reviewer data before creating comment popup (#476)

* Fix: Make publishing drafts more robust (#483)

* Fix: Swap file_name and old_file_name in reviewer data (#485)

* Feat: Enable toggling date format between relative and absolute (#491)

* Fix: Add opts to help popup (#492)

* Fix: Force start_line for jumping to diagnostic to be inside buffer (#494)

* fix: redefine colors after reloading colorscheme (#500)

* Fix: Use path instead of oldpath as fallback for unrenamed files (#496)

* Fix: Use file_name when old_file_name is not set (#495)

* fix(ci): fix lua tests (#501)

* Proxy Support (#499)

This is a #MINOR release.

---------

Co-authored-by: Jakub F. Bortlík <jakub.bortlik@proton.me>
Co-authored-by: Jonathan Duck <Duckbrain30@gmail.com>

lua/gitlab/indicators/diagnostics.lua

@@ -122,6 +122,9 @@ M.place_diagnostics = function(bufnr)
     u.notify("Could not find Diffview view", vim.log.levels.ERROR)
     return
   end
+  if vim.api.nvim_buf_get_name(bufnr) == "diffview://null" then
+    return
+  end
 
   local ok, err = pcall(function()
     local file_discussions = List.new(M.placeable_discussions):filter(function(discussion_or_note)