$ git clone -n https://src.fedoraproject.org/rpms/golang-github-ziutek-mymysql.git /var/lib/mock/f45-build-12617-442/root/chroot_tmpdir/scmroot/golang-github-ziutek-mymysql
Cloning into '/var/lib/mock/f45-build-12617-442/root/chroot_tmpdir/scmroot/golang-github-ziutek-mymysql'...
$ git fetch origin 5f2f22342e807de31d6fd96c05f23bae7a1005f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-ziutek-mymysql
 * [new ref]         5f2f22342e807de31d6fd96c05f23bae7a1005f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f2f223 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild