We remove some arguments that are rarely used or 
used just to simplify setups on specs.

Modified Mentionable#create_new_cross_references method 
we don’t need to calculate previous references to avoid the 
duplication because we do that at database level when 
creating references extracted from the current entity state.

MergeRequests won’t create cross_references for commits that are included so we change a spec to use a different merge request to make references to commits to other branches

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/21733

Add two newlines before the template if the existing description isn't
empty. This makes it easier to see where the template begins.

Don't append the template when "Reset template" is selected, of course.

Don't append template if it equals the existing description. This makes
it so that selecting a template twice doesn't duplicate it.

Display the on/off icon under the "Features" section of the admin area
for the Container Registry.

Closes !22805

It toggles the 'WIP' prefix in the MR title.

Added preventDefault for toggling sidebar off as well as for pinning
and unpinning the sidebar.

Closes #22851

Closes #20982

https://gitlab.com/gitlab-org/gitlab-ce/issues/20982

Signed-off-by: Rémy Coutable <remy@rymai.me>

It allows us to remove redundant steps of installing required dependencies for every build.

Signed-off-by: Rémy Coutable <remy@rymai.me>

See: https://gitlab.com/gitlab-org/gitlab-ce/commit/6280fd3777920670ee42111fddf29576cbf85988#note_14766241

We wanted to avoid accesses to the file system, because it seems reasonable that if the mounter column has some content it’s because there are an associate file. This is an speed boost when you access to a bunch of build instances to show their information.

The problem is that solution doesn’t work if you uses that method to detect the thing and you’re changing the uploaded file on instances that had that column empty. Until you don’t persist the instance the database column will be empty so we can have false negatives

Fix "Copy to clipboard" tooltip to say "Copied!" when clipboard button
is clicked.

Closes #22022

Updating test value for milestone title

Adding API test for title with reserved HTML characters.

Updating changelog

Adding the MR number for fixing bug #22452.

removing duplicate line

Updating MR number.