Do not disable commit changes button on repost

[zeripath]

If the user has pressed commit changes and the post has failed - do not disable
the commit changes button.

Fix #12072

Signed-off-by: Andrew Thornton art27@cantab.net

[codecov-commenter]

Codecov Report

Merging #12644 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master   #12644      +/-   ##
==========================================
+ Coverage   43.43%   43.44%   +0.01%     
==========================================
  Files         645      645              
  Lines       71328    71329       +1     
==========================================
+ Hits        30981    30991      +10     
+ Misses      35333    35326       -7     
+ Partials     5014     5012       -2     

Impacted Files	Coverage Δ
routers/repo/editor.go	25.14% <100.00%> (+0.14%)	⬆️
modules/indexer/stats/queue.go	64.70% <0.00%> (-11.77%)	⬇️
models/gpg_key.go	54.81% <0.00%> (-0.59%)	⬇️
modules/git/repo.go	49.74% <0.00%> (+0.50%)	⬆️
modules/log/event.go	57.54% <0.00%> (+0.94%)	⬆️
modules/queue/unique_queue_disk_channel.go	55.38% <0.00%> (+1.53%)	⬆️
modules/queue/workerpool.go	62.04% <0.00%> (+2.04%)	⬆️
modules/git/utils.go	77.04% <0.00%> (+3.27%)	⬆️
modules/indexer/stats/db.go	60.86% <0.00%> (+8.69%)	⬆️

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[techknowlogick]

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