GoLand 2019.3.3 stable version has been released , this version mainly fixes bugs and provides support for Go 1.14, designed to allow developers to use GoLand the vendor / development and Go 1.14 on Go Modules project.
Download: https://www.jetbrains.com/go/download/
A week ago, Go 1.14 released , if the module root directory contains vendor directory is automatically enabled vendor mode. Click here to know the details we may now have to support this change in GoLand 2020.1 EAP in, even to achieve a similar behavior to Go 1.13 or earlier. If there vendor module in /, IDE automatically imports resolved to vendor / folder.
In Preferences / Settings | Go | Go Modules, the box Vendoring mode is changed to "Enable vendoring support automatically". Go 1.14 of language rules can not disable this setting, but for 1.13 and earlier, the team provides the option to disable it.
