$ git clone -n https://src.fedoraproject.org/rpms/golang-github-valyala-bytebufferpool.git /var/lib/mock/f39-build-1442849-32510/root/chroot_tmpdir/scmroot/golang-github-valyala-bytebufferpool
Cloning into '/var/lib/mock/f39-build-1442849-32510/root/chroot_tmpdir/scmroot/golang-github-valyala-bytebufferpool'...
$ git fetch origin 714b766e7dcc0f666081e83c72ebfafc933c22e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-valyala-bytebufferpool
 * [new ref]         714b766e7dcc0f666081e83c72ebfafc933c22e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 714b766 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild