Prevent execution of empty SQL strings during database import (#2664)
Prevent execution of empty SQL strings during database import (#2664)

Co-authored-by: Naoki Takezoe <0180e7d733d092c11c58e4dee71d8f8f676bd26d@gmail.com>
imeszaros/gitbucket,imeszaros/gitbucket,takezoe/gitbucket,xuwei-k/gitbucket,imeszaros/gitbucket,xuwei-k/gitbucket,takezoe/gitbucket,imeszaros/gitbucket,xuwei-k/gitbucket,gitbucket/gitbucket,takezoe/gitbucket,gitbucket/gitbucket,xuwei-k/gitbucket,gitbucket/gitbucket,gitbucket/gitbucket,takezoe/gitbucket