$ git clone -n https://src.fedoraproject.org/rpms/golang-x-exp.git /var/lib/mock/f40-build-2595861-62746/root/chroot_tmpdir/scmroot/golang-x-exp
Cloning into '/var/lib/mock/f40-build-2595861-62746/root/chroot_tmpdir/scmroot/golang-x-exp'...
$ git fetch origin 7774151cf29b44cfc980e9f2c94753a0f2f6bed9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-exp
 * [new ref]         7774151cf29b44cfc980e9f2c94753a0f2f6bed9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7774151 Rebuild for golang 1.22.0