$ git clone -n https://src.fedoraproject.org/rpms/rubygem-gtk3.git /var/lib/mock/f41-build-819796-151905/root/chroot_tmpdir/scmroot/rubygem-gtk3
Cloning into '/var/lib/mock/f41-build-819796-151905/root/chroot_tmpdir/scmroot/rubygem-gtk3'...
$ git fetch origin 5b602191f206997fd85334a021c88c00fc3510c6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-gtk3
 * [new ref]         5b602191f206997fd85334a021c88c00fc3510c6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b60219 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild