Fixed that update_form always proposes the default status when updating an existing issue (#15344).

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Add an indication to admin/info whether or not ImageMagick convert is available (#15311).

Patch by Mischa The Evil.

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Removed deferred tests.

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Use :button_save instead of :button_update on committers form (#15275).

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Use :button_edit instead of :button_update for editing issues (#15275).

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extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/trunk%4012285
Fixed UI tests.

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Bulgarian translation by Ivan Cenov (#15369).

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