$ git clone -n https://src.fedoraproject.org/rpms/rubygem-shoulda-matchers.git /var/lib/mock/f39-build-1819748-41839/root/chroot_tmpdir/scmroot/rubygem-shoulda-matchers
Cloning into '/var/lib/mock/f39-build-1819748-41839/root/chroot_tmpdir/scmroot/rubygem-shoulda-matchers'...
$ git fetch origin 385e2e375340c40880ef1182320753e1b3c7f982:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-shoulda-matchers
 * [new ref]         385e2e375340c40880ef1182320753e1b3c7f982 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 385e2e3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild