$ git clone -n https://src.fedoraproject.org/rpms/golang-github-lestrrat-xstrings.git /var/lib/mock/f45-build-12189-439/root/chroot_tmpdir/scmroot/golang-github-lestrrat-xstrings
Cloning into '/var/lib/mock/f45-build-12189-439/root/chroot_tmpdir/scmroot/golang-github-lestrrat-xstrings'...
$ git fetch origin 1833bfe87724f6401e2f9510b90f641ac3983896:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-lestrrat-xstrings
 * [new ref]         1833bfe87724f6401e2f9510b90f641ac3983896 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1833bfe Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild